Figuring out what motivates you to exercise is often a hard journey, but when you finally figure it out, you'll be glad you took the time to do it. Maybe hearing about someone who lost hundreds of pounds motivates you. Or maybe exercising for a cause does. It doesn't always have to be life altering however, it could be as simple as looking at your calendar and being proud of yourself.
When I first started working out and was having a hard time finding my own motivation. My friend, who was a teacher at the time, suggested that I start putting stars on my wall calendar on the days I exercised. I know it sounds very elementary (yes, I use this with my girls and brushing their teeth - they love it too), but I began to look forward to seeing all the stars I've acquired by the end of the month glittering back at me. Want to know one of the best days of my life? When I had to go to the store to purchase more gold stars because I had gone through a pack of 200!
My husband currently uses the same type of method, but with giant red x's. While giant red x's never motivated me, I am glad he found what works for him.
Try it out and see if it works for you!