How cheap are you aiming?
You could ask your hubby to write out some massage vouchers for you to cash in with him when you hit a milestone. Provided he doesn't mind giving massages of course!
What about a new book? You could then go to a cafe and have a couple of cups of tea or coffee while reading it to have a relaxing morning.
Or a fitness DVD. That way your rewards plug right back into your healthy lifestyle.
Or there's always some fabulous frocks on eBay. A fraction of the price you'd pay at the shops and delivered right to your door!
another Ali on the forum.