Dolly's Wash House at 574 New Holland Avenue, Lancaster, Pennsylvania.

Its what you'd expect from a laundromat. Old cracked floors and outdated decor. But you're doing your laundry, not having brunch.
Basic washing machine is $2.00 and dryers are $0.25 for 7 minutes. Bigger machines are $4.00.
There's a full staff, ATM, TV (plays NFL games on Sunday) and various vending machines for laundry and snack purchases. Has plenty of places to sit, but no visable power outlets.

*Note* I used to use Charles's Laundry on Orange street until I was doing wash one day and saw 2 cockroaches hanging out on the corner of a machine. I don't want those things hitching a ride home with me.

All and all, a decent laundry place.