Thumb Score: +2

I saw in my google play points screen that there were now some apps listed where you earn a small amount of points for installing selected apps. The only stipulation is that you keep them installed for a day. It took all of 10 seconds to click and install all of them.

Normally play points by themselves are not that great, however, I recently found out that you can convert 100 play points into $ 1 of google play credit, which is much more useful.