I love being at the gym early in the morning, but I have the hardest time actually getting out of bed . I needed something more convincing than my warm bed.
So I built a pinterest board, full of motivational quotes (http://pinterest.com/funteamp
arty/it-s-worth-it/) and in the morning, when my alarm goes off and I struggle to get out of bed, I grab my phone off the bedside table and read through the quotes. Sometimes just knowing they are there is enough to get me motivated and out the door.
If you don't have a smart phone, you could just as easily print out a bunch of motivational quotes and leave them on your bedside table or carry them around in your purse, for those moments where you resolve falters.