If you’re not familiar with the process of putting icons in folders that started with iOS 4, here’s what you’ve been missing. First, you touch and hold on any of your application icons, and they’ll start to wiggle furiously. While they’re in that mode, you can pick ’em up, drag ’em to different screens, or even delete them by tapping on the “X” that appears in the upper-left corner of each (except for the ones that come installed by default, which you can’t remove).
If you touch and hold on one, you can drag and drop it on top of another to create a folder containing the two apps. Your device will attempt to guess what you’d like to call the folder based on what you’ve put in it. It’s pretty smart about the names, but you can edit things if you don’t like what’s been assigned.
Here’s something not everyone knows, though—you can touch and hold on a folder’s icon and drag it down into the iOS dock, meaning that a whole bunch of your most frequently used apps will be accessible no matter what screen you’re on.
Once you’re finished with app-wiggling edit mode, click the Home button to return everything to normal.
Note that you might need to drag an icon out of your dock before you attempt this, as you can’t put anything in there if it’s already full. You can, though, have your entire Dock filled with folders if that’s what you want to do. Pretty nifty, especially for those of you who have approximately 20,000 apps on your devices. What? They’re all neatly categorized into folders already? Well, then, I have nothing further to teach you, my good friend.
My special thanks go out to longtime TMO reader furbies, who suggested this tip. You rock, sir!