If any of you are like me then you would also install and uninstall apps nearly everyday....
I try most apps (esp the free ones) on the market and uninstall once I get bored or move onto the next... 
I'm already getting the low on space notification regularly...
Now I've come across IMO the best free simple backup and restore app for Android...
... so you don't have to use bandwidth to get the app again as it is backed up onto the micro SD card...

look for app manager in the marketplace
... and let me know what you all think or if there's better....(yes I use my backup pro too for data)....