Exercise routine with a little one

I would like to get back into the gym. Does anyone have some tips on how to stay motivated. By the time I get home from work and get my son ready for bed, pack his bag and my lunch for the next day all I want to do is sleep and/or watch tv and eat snacks.,,,I'm starting to feel like a marshmallow.

About Nichelle
Current: Olive Branch, Mississippi
Birth: March 07
On Moms.com since: Jan 12, 2014