I've found our local Amerigas to be the best place. It costs about the same as an exchange, but they have a punch card program where every 4th tank is free, so it ends up being about 25% cheaper in the long run.
"The first five days after the weekend are always the hardest."
-- My wife
My nephew playing with his "girlfriend":
"I'm going to play with ninjas, you go to the kitchen."