Works great - very useful
Xslimmer - Your Mac on a Diet With Xslimmer - Universal Application Slimmer for Mac OS X 10.3 and up.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
iMobie MacClean - MacClean 3 is your all-in-one Mac app, allowing you to maintain OS performance, keep privacy safe, free up space on Mac, and best of all, keep away from any malicious threats.
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
ZEEEN - A beautiful iPhone app for browsing Dribbble
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode