Tara B.
Google
This is the cleanest and most well run laundromat I have ever used. If you forget something, they stock everything you need for laundry up at the desk in tiny sizes exactly as you need, not terribly expensive. They have enough carts and folding tables, so that's never a problem.
It is a card system, but again, they have everything you need right there, ATM included.
The best part, to me, is that the ladies at the desk keep an eye on folks, and don't tolerate no kind of mess, so a single woman doing her laundry at night can feel 100% comfortable. Oh - also, they keep everything SO clean, bathroom included (it's locked, so people can't just run in and out making a nasty mess).