As I work on an app that loads stuff in DB, I frequently have to go to "Manage Apps" then find my app in the list then click on it and then "clear data". 
As my app's name starts with "P" and I'm using my everyday phone, thats quite a quantity of apps to browse before I find mine.

Easy tip : prefix your app's name with "_____" for example, to have it at the top of the list of your apps.