DragonDrop has been out for a while, but I still get asked about it whenever I use it during a presentation. Let’s say you’re dragging a document (an image for example) from one app or Finder location to another, and the thing you’re dragging to is obscured. Without DragonDrop you may be able to do some trackpad acrobatics, enable Expose and make it work without losing the file. If you have the app though, you can just give your mouse a little shake and a small window like this will pop up:
Then just drag your file onto the window, and it becomes a floating panel that sits above other windows:
Now you can move over to the app you were working with before and drag the files onto it from DragonDrop. I use this all the time when I’m adding files to Xcode, or when I’ve grabbed an image from online that I want to send to someone in an iMessage.
There’s probably a way to achieve a similar effect with LaunchBar or other similar apps, but DragonDrop is perfect as an app that does one thing really well. Plus it’s only $4.99, so why wouldn’t you have both? You can get it on the Mac App Store for $4.99.