Use Dropbox like a Pro and avoid some common challenges
Not everyone has access to file servers or the ability to maintain one. This can be a huge challenge if you need to share files with co-workers or customers on a regular basis and can’t necessarily send them via email. Dropbox provides an easy, reliable and cheap (if not free) solution to your worries.
So, why do I need this again?
Two scenarios: You are a freelancer or small business and collaborate with others on a project. You need to exchange files constantly, for example a PSD or Powerpoint document. Or you need to get a client’s feedback on a design.
Often times, you can’t send files via email because they are simply too large. Layered PSD’s can mount up to several hundred MB’s and even a Powerpoint document with a mere 7MB’s or so will be rejected by many email clients. On average, the supported file size is around 3–4 MB’s.
You could, of course, set up a folder on your own server or domain (if you have one) and just store the documents there and send your clients or partners a link. But what happens if your partners or clients want to make changes to the document and share the revised version with you? Then you need to provide them with upload and/or change privileges. Even if you know how to do that (and it’s not that difficult), it can get tiresome very quickly if you’re not doing it with just one or two people.
So, bottom line: if you need to share large files on a regular basis, need feedback on it from others and need to see their revised version and don’t want to go through the hassle of managing all the files on your own server, Dropbox might be just what you need. It works on Mac, Windows and Linux, so chances are you can give it at least a try.
Keep in mind: Files uploaded via the desktop application are only limited in size by the size of your account. Files uploaded via the web interface have a limit of 300 MB.
Setting it up
First, go to www.dropbox.com and download the installer. No, don’t worry: it’s not a desktop app, it’s just an installer that will allow you to manage your online files on your computer without having to go through the web login every time.
After the installation, your online storage of Dropbox will be available like a hard drive on your local machine. By default, 2GB of storage are free. By inviting friends or colleagues to Dropbox (via a customized link with your ID), you can earn another 1GB of storage for free. That should be enough for starters.
Also, your files are not solely available online, they are also stored on your computer. Should you not have access to the internet at some point, you will still be able to access your data. The next time you connect to the web, the files will be updates automatically.
Computers that were offline (disconnected or powered off) when files were changed on another computer will automatically receive the most recent changes to files (and send any of their own updates) as soon as they reconnect to the Dropbox service via the Internet.
You also don’t have to worry about shutting down Dropbox while a sync in progress — it’ll simply resume where it left off once your computer is back online.- https://www.dropbox.com/help/10
There’s an app for that!
Best of all, even when you’re on the road without access to a computer, you can still access your files through the corresponding iPhone app! You can’t edit anything, but it displays PDF’s, HTML, image files and even Powerpoint files without any trouble! Haven’t tested it with other MS Office or Apple iWorks files, but I guess it will be ok with them too.
The interesting part: sharing!
Let’s get to the bottom of it now that you’ve set everything up. Either log into your web based Dropbox account or open your Dropbox default folder on your computer. Set up a file structure that suits your needs.
But be aware — and that is the most important thing to keep in mind when you get started -: there is a ‘hierarchy’ of sharing privileges that you need to take into consideration before you give anybody access to your files!
What does that mean? Look at this structure:

The Example Folder has three subfolders — Apple Documents, Image Files, and PDF Documents. Say that you want your customer or partner only to see the Image Files folder. In your web based account, simply mark the checkbox in front of the folder and select “Share Folder” from the “More Actions” menu. You’ll be prompted to enter an email address of the person you want to grant access and you can add an optional message. The person will then get an invite and after registering with Dropbox, has full access to the contents of the folder.

But, what happens if you later on decide that this person should have access to all subfolders of Example Folder? Unfortunately, and that is, in my opinion, a shortcoming of Dropbox, you can not share folders which include an already shared folder! You will be prompted with an error message saying exactly that.

Either you have to share all other folders manually or you have to remove the sharing privileges from the Image Files folder first and then set the privileges for the parent folder (Example). Then, of course, the person you invite has access to all files that are contained within the parent folder.
As long as you are aware of the peculiarity before you set up your file and folder structure, you shouldn’t run into too much trouble.
Working with files
Now that you have uploaded your files and shared them, Dropbox shows it’s real power. Not only can users, which you have invited, upload files to their folders, but you can also work on the same file simultaneously!
If two people or computers change the same file at the same time, the first person to finish uploading their new version will “win.”
Dropbox won’t attempt to merge the changes for you. Therefore, any changes made to the same file after it has been updated will also have their changes synced to all computers, but as a “conflicted copy” of the file.
Fore more information on this specific topic, check out this help document.
What if you want to grant a large number of people access to a specific file, for example a wallpaper that you made and offer for download? It’s very simple: just put the file into your Public Folder on Dropbox and get the link to it via the “More Actions” menu. You can then put that link on your website, send it via email or tweet it — everybody can access it. (more information on that topic can be found here).
Other awesome things you can do via Dropbox
Share your 1Password keychain across computers Yes, I am serious. Imagine you have a stationary computer and a laptop. Of course, you’d need to keep both keychains in sync. The easiest way to do it is to put your 1Password keychain on your Dropbox account and direct the application there. I’ve written about it in detail earlier on this blog, you can check out the article here.
Sync The Hit List across computers Same principle as above. Put your ‘thllibrary’ file on Dropbox and direct The Hit List there. This way, your tasks are always in sync across multiple computers.
Empower Typinator Starting with version 3.6, Typinator supports syncing via Dropbox natively. If you have not upgraded to the latest version yet, just do it manually. Export your sets from Typinator (file ending .tyset),put them in a folder on Dropbox and import them on another machine. Granted, it’s more painstaking, but until I upgrade, it will have to suffice.
Why not use MobileMe for this?
Granted, it would make sense since a MobileMe account comes with a whopping 20GB of storage. But it also costs you some pretty hefty $$! Dropbox, on the other hand, is free.
In addition, I found that the up– and download speed from the MobileMe iDisk is terribly slow. And while I love Apple and their products, there is no denying that from time to time, MobileMe simply doesn’t work or is completely down. If you need to access your files then, you are — pardon the strong language — screwed.

I haven’t yet had to collaborate with others remotely but this looks like a great app. Thanks