If your smartphone is anything like mine, it's full to the brim with apps (I really should get around to cleaning out the detritus some day). What's more, the list of apps I've installed over time -- listed in My Apps, in the Google Play Store app -- is ridiculously long, including literally hundred of programs, both commercial and free, that I've installed at some point and then removed from my device. Google keeps track of everything you install, which is handy, as it means anything you download once you can download later (at no cost), but it also means this list can get painfully cluttered with time, and frankly I'll never revisit the vast majority of the stuff in my list again. Luckily, the latest version of the Google Play Store app (available as an APK from Android Police) contains the ability to delete apps from this list. Be careful that you don't remove anything you might want later, but if you're in the mood for a little spring cleaning, it's a nice new feature to have.