Take a half hour and go for a walk or run outdoors. Rain or shine. It'll do you good. Look into the cost of your community gym. In Vancouver it's about $45/month (and includes entry to neighborhood gyms and swimming pools). However, I realize I could do my entire workout at home with a few pieces of equipment. Stability ball, weighted ball and resistance band. Want weights? Keep a couple of empty laundry detergent containers and fill with water or sand. Cheap resistance band? Get a spare tire from a bike store (the inflatable part). Or ask at the store if they have any used ones they're gonna throw out. 

Remember, the hardest part of working out isn't the workout itself. It's getting off your butt and doing it.