Interesting topic MJ...I'll keep an eye on it. We've always bought and sold stuff in the past..DH would buy a truck load of non running push lawn mowers, fix them and resell them. I bought and sold horses to put myself through college. I also sold the manure pile by the truck load LOL! There's money in poop! Its a bit harder to do these things in a small town though.
I think the pet sitting need is a good one...what about "doggie day care" or vacation pet sitting-- that season is coming up! Even watching someone's house, watering plants, etc.....can make you some extra $$$.