Postmates is the easiest way to get delivery for anything in your city.
Ok, I just wanted to say that this is totally one of my favorite new apps in a long, long time. Postmates is a delivery service that delivers just about anything, really. Meals, groceries, drug store items, your laundry, whatever. You open up the app, tap in your order, provide the delivery address, and then you get quoted a price for delivery (as far as I can tell it's based on a combination of distance and complexity; I had a simple chicken dinner delivered tonight and the fee was super low.)
Their goal is to be everywhere; I can't find a complete list but I know they're already in San Francisco (of course), Los Angeles, Austin, Denver, New York, Las Vegas, Miami, Seattle, San Diego, Chicago, Boston, Philly, DC, and I'm sure I've left off a city.
I know there's been other delivery/errand services in the past but I think a lot of them failed because they weren't very convenient to use, sad for a service that's all about convenience. Postmates is SO simple, though. I will admit that I had some challenges setting up my first delivery address but, uh....that could've been user error, to be honest.
Anyway,, if you live in one of those cities and you think you might want to check it out, you can use my referral code z5rta for a $10 credit for delivery fee. (When I set up my account I used a referral code from a friend and it took me two deliveries to use up the credit. YMMV!!!) You can go to postmates.com to get the app or get it from Play or iTunes, as applicable.