put your fav tracks on and have a dance! Or if you have kids you will know the party sort of dances they do at a haven type place, put those on on you tube or such like and do those with the kids? Or instead of trying to do half an hour or an hour of something pick up a skipping rope and skip for 5 mins, then in the next hour do it again etc you can mix that up maybe, with 5 mins stepping up and down the bottom step? or hula hooping, use you imagination lol. Or get yourself out for a walk, start small and see if you can walk a bit further every few days? sorry trying to think of things that are cheap and easy for you to do xx