Readers offer their best tips for running multiple instances of Dropbox at once, using Twitter to jot down notes and ideas for yourself, and using Google Docs to manage money between friends. Don't like the gallery layout? Click here to view everything on one page. About the Tips Box: Every day we receive boatloads of great reader tips in our inbox, but for various reasons—maybe they're a bit too niche, maybe we couldn't find a good way to present it, or maybe we just couldn't fit it in—the tip didn't make the front page. From the Tips Box is where we round up some of our favorites for your buffet-style consumption. Got a tip of your own to share? Add it in the comments or email it to tips at lifehacker.com. Running Multiple Dropbox Instances Photo by Jean-Baptiste M. Tino shows us a workaround to have multiple Dropbox accounts running at once: Dropbox client does not allow you to run multiple instances concurrently but you can get around with this issue by running it as different... - 摇光