19Entry by TheBuzzard
18Entry by sonoftime
Cracked pays people to make smart memes. Visit the Photoplasty and Pictofacts Workshop to get in on it.
Places of business are absolutely loaded with signs: Buy this! Stand there! Don't lick that! Weirdly, none of those signs seem to contain honest messages about the various ways establishments are trying to trick you.
Just one or two of those would make the world so much less awkward.