As far as I can tell, this service is only available in the Boston area, but as I have plenty of friends in the Boston area... here is a nice tip for you:
Run My Errand. This is a cool service that allows you to post errands (get milk, pick up my dry cleaning, jump start my car) that you need to have run/done and how much you are willing to pay for them. Somewhere in cyberspace, a runner sees your posting and says... "yep, I'll do that."
The whole thing is done without you having to have actual cash on hand.
Check out their 90 second explanation video here.
If anyone has used this service (or uses it after reading about it in this blog) please post your experience. Sounds pretty helpful. I surely would have used it when I was in Boston.
To find out more and sign up for the service, go to www.RUNmyERRAND.com