18 essential #lifehacks for everybody.
World of Stereotypes
Artist creates little matchbox greeting cards with hidden messages inside (part I) - 9GAG
16 Useful Mental Life Hacks More
Rubik cube solved in 20 movements or less
favorite and forget.. 15 free programs that are very usefull
Some very useful software for everyday use
Image from http://www.belzaran.fr/wp-content/uploads/croquis_chasseuse_01.jpg.