Well,
@Jamrox (bless her, Mrs Motivator) has had these threads going for a while now, and from the beginning has advocated just moving about more in whatever way possible. To begin with, as I was recovering from major surgery, all I could manage was some seated arm lifts, and a bit of foot waggling. I have come a long way. Due to disabling impairments I am never going to be a fell runner, or even go for long walks, but will find inspiration and motivation by reading what others are doing and adapting to my own abilities. It is all about challenging oneself a little more in increments. So housework and gardening can be a slow gentle form of exercise or a fast heavy workout. Whatever we want to make it. Just move more and move as much as you can in whatever way possible. For me, as some will have tired of hearing, the swimming pool is the only place I can manage a vigorous work out. I still try to move about out of water as often as I can, and make use of garden furniture and work tops in the kitchen as alternative gym equipment.
Today I have managed to get to the swimming pool. 55 mins aquafit class and 15 mins swimming. Feels good, though tiring. Rewarding myself with feet up reading paper, nice cup of coffee.