Post all the useful tricks you find here.
For example:
http://sarcasticcharm.com/99-life-hacks-that-could-make-your-life-easier
http://9gag.com/gag/a44QvWw
http://9gag.com/gag/aEwgE9M
http://9gag.com/gag/a2N7B5Z
(https://d24w6bsrhbeh9d.cloudfront.net/photo/adNL8Dd_460s_v2.jpg)