I have been lucky that the weather has been co-operating around here lately, and I have been able to get out for my morning walks daily.I walk for about 45 minutes on the walking path around the lake near here. I feel great that I can exercise and not have to pay a gym fee.The walk also includes some stairs and some smaller hills so it's great exercise. I have an exercise bike at home as well, ( which I picked up for $20 at a garage sale this year- worth at least $200 and in excellent shape.) My ipod I won in a contest this year, which supplies me my tunes.
I have a Wii fit, ( which my girls bought me for Christmas last year),and dvds/vhs of all sorts of exercise routines,( which were on clearance), which I prefer to use when I can't get outdoors and the weather turns colder.
Also note: Some areas where you live may also have schools, rinks, etc., that offer free exercise classes and programs.