I like a good inspirational quote to hang up where I'm sure to see it around my house. The bathroom mirror, the door out to the garage, the mantle in the living room. This quote is from runner Meb Keflezighi, the guy who won the Boston Marathon in 2014 (the first American male to do so in about 30 years, and at age 39 one of the oldest). No doubt, its a good quote for marathon running inspiration--but I think it works for the day-to-day stuff too.
The link should take you directly to a downloadable file. I generally print mine up to fit an 8x10 frame.