Originally Posted by airguitar
Just out of curiosity.... How often do you guys wipe your devices clean, and how long does it take to reinstall all the apps and such onto your phone? I know some people who do it every few months just to keep things "clean"? Is this even necessary?
Welcome to the Hole, airguitar!
Unless I'm swapping ROMs or the developer recommends a complete wipe, I'll only wipe cache and dalvik so no need to restore apps or data.
When I do a factory reset, it'll take some time for the Play Store to restore all your apps, but all data from them is gone (passwords, SMS, game scores etc.).
However, there are apps out there like Titanium Backup which can save all your apps AND data.
For periodic "maintenance" you can always wipe cache and dalvik. It helps to clean things out and perhaps speed up your device a little.