That mystery Dropbox event Wednesday turned out to be a complete overhaul of the way Dropbox divides business and personal accounts.
The new Dropbox for Business, available in beta in December, lets you connect your personal account to your work account without making you switch between them. You'll be able to see both as folders on the same screen in all versions of Dropbox, and work admins will be able to watch all your activity in the business folder.
See also: 10 Things You Didn't Know Dropbox Could Do
"It's really nice to have home and business together in the same place," said Dropbox founder Drew Houston at Dropbox HQ in San Francisco. "I don’t want to have to carry two phones, and this is the same thing."
Houston and his team emphasized that the new setup will make things much easier when employees switch companies: the accounts will simply uncouple. Dropbox is used in more than 4 million businesses as well as by 200 million personal users, the company says.
Despite the convenience of having them on the same screen, the new set-up takes pains to keep some work and personal stuff as separate as possible. For security, admins will be able to restrict certain files — so that you can't share them with anyone not recognized as part of the company. Camera uploads will always go to your personal account.
Here's an example of what the new Dropbox will look like:

The Dropbox for Business upgrade will be available in beta in December, and will be available for all users in the new year.
If you "favorite" images or text documents on your mobile device using the Dropbox app, you can access those files later, even if you're not connected to Wi-Fi or cellular service.
To conserve memory and time, you can save files directly to Dropbox from your computer programs. This requires simple commands in Terminal for Mac OS or a small settings change for Windows.
For Mac OS, open Terminal (in Utilities) and type cd Dropbox. Press enter, and then type ln -s ~/Documents /Documents. Hit enter again to complete the process.
In Windows, right-click on your My Documents folder, hit Properties and click Move. Then select your Dropbox folder.
When you don't have access to Dropbox, it comes in handy to have an alternate way to upload files.
If you create an account at SendToDropbox.com, you can send files to a custom email address as attachments. The files will automatically appear in your Attachments folder in Dropbox.
If you're a free user of Dropbox, you can immediately access 2GB of space, but you can get more storage without having to pay for an upgrade.
Dropbox offers 500MB for every friend that you refer to the service, 250MB for completing a "Getting Started" checklist, 125MB for connecting social media and several other options to earn more space.
Dropbox Pro users can get up to 32GB of extra space, thanks to referrals.
It's difficult to maintain specific preferences or add-ons in Firefox when you use the browser on multiple computers. However, you can download Firefox Portable and store it in Dropbox. Since Firefox Portable can be used anywhere, your settings and add-ons will be synced.
URL Droplet allows you to upload links straight to your Dropbox folders. All you need to do is take a link (this especially works well if the link leads to a PDF or similar document) and paste it into the URL Droplet form.
Note: This Dropbox tip is intended for legal use only.
If you're away from your personal computer and you'd like to download bit torrent files, ready by the time you get home, Dropbox is a perfect tool.
Just adjust the settings in your torrent program (uTorrent, BitTorrent, etc.) to automatically load your torrent in Dropbox.
Image courtesy of Jakub Jankiewicz.
This one can get tricky, so it's intended for advanced users (using Mac OS).
Many people use Dropbox for both business and personal purposes, often maintaining separate accounts for each, since Dropbox doesn't support multiple users at once. This can be inconvenient when you're connected to one account but want to reach files in another.
A solution is to use an alternate home directory in the command line and create another Dropbox icon and folder, saved in a separate area on your computer. You can differentiate between the two by changing the color of one of the icons.
Learn more about this process on the Dropbox Wiki.
You can easily back up your website and data on Dropbox, which is useful if you've spent a lot of time and effort building your site or your're concerned about your servers.
With a service like Backup Box or a WordPress.org plugin, rest assured that your website is backed up.
Want a website, but don't want to pay for a domain? Want an online portfolio, but don't know HTML? Dropbox can help.
By using services like DropPages or Pancake.io, you can create a small and simple website with minimal effort.
With Pancake.io, all you need to do is save plain text files in Dropbox, and you can edit them at any time the same way. DropPages is a little bit more complex, letting you add themes and custom URLs. Both services allow you to use Markdown or HTML.
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Image: Flickr, Ilamont.com