BatteryCare is a software created to optimize the usage and performance of the modern laptop's battery It monitors the battery's discharge cycles and helps increasing it's autonomy and improving its lifetime.

CCleaner (Crap Cleaner) is a freeware system optimisation tool. That removes unused and temporary files from your system - allowing it to run faster, more efficiently and giving you more hard disk space.The best part is that it's fast! (normally taking less that a second to run) and Free.