I was just thinking, since I found Blender could append scripts from other .blend files people here can pile together a bunch of scripts in a single .blend file (like GE essential scripts vol. 1 or something). So with a single download you can have a nice large collection of scripts you can append into your game. This way there can be avoided many downloads and forum hunting.
Initial thoughts for this would be scripts for.
-Mouselook and other mouse related scripts
-Property transfer between scenes
-Destroying joints made with the constraints interface
And don’t forget the instructions on using them so non-programmers know how to use them.