I usually calculate the jobs as in time needed to make that money. I do pay for someone to wash my windows, especially the ones for the first floor, and I do pay somebody every 2 weeks to wash my bin. One is £12 every 6 weeks, another £4 every 2 weeks, but is paying them I save at least 4-5 hours, which I can use more efficiently. Other stuff like gardening for example, I enjoy doing it, even if it is hard.