Entrepreneur magazine has a list of the best and worst marketing ideas ever. Vegas, Mac, Reese’s Pieces, Tylenol, Nathan’s, Livestrong and Blendtec have some of the best ideas that can translate into lessons for any marketing professional.

Worst idea actually went to America’s Top Guerrilla Marketer (according to FastCompany), Sam Ewan of Interference.

By looking at good and bad pieces of marketing (and reading all that direct mail), you can get a feel for what might work with your audience.