Few months ago there was a thread at askreddit about how to man the fuck up. (http://www.reddit.com/r/AskReddit/comments/gbe04/how_can_i_man_the_fuck_up/ )

In one of the replies someone sent a link to set of pictures. I use those pictures to motivate my self before going out to the gym or the clubs. I keep imagining those images at the gym or when I am at the club because it helps with the inner game and motivation. Link to the said pictures : http://imgur.com/a/krCHW

Hope it helps you as much as it helped me.