It's always nice to get cash, but sometimes I barter for services or products. I only agree to it if it's equal in value to my hourly rate and it's something I would use anyway.
Here's a few things I've gotten through barter.
*Free daycare for a week. I've done this exchange twice.
*Dunkin Donuts coffee and 2 huge tubs of Baskin Robbins ice cream. (Unfortunately for me, I went on my all organics kick soon after receiving the ice cream.

I ended up giving it away to family.)
*19 free days at the flea market. (not sure if this was a good trade, because I'm always busy weekends and still haven't used these days. Plus it's far away and scorching hot everyday lately... what was I thinking!

)
Some things I've been offered but they didn't end up booking.
*free movie tickets
*free tickets to a water park