I relised a while ago via mowing lawns.

If you don't get the ca$h up front. You might as well mow everyones lawns & then a few days later turn up on their doorstep & say...

"Hello, I mowed your lawn a few days ago & would you, if you want too, like only if you really really want to, give me some money, whatever amount you want to pay, whenever you want to, for mowing your lawns?"

......................