Grilled cheese sandwiches, omelettes, that dip you make by melting a block of Velveeta with a couple cans of chilli, easy cheese from the can on Chickin' in a Biscuit crackers, cheese fries, cheese-steaks, ham or turkey and cheese sandwiches to be dipped in soup on a cold winter's night, cheeseburgers... my wife thinks I'm nuts, but in the right situation, I love the stuff.
But never, ever, under any circumstances should you buy a knock-off brand of it. They don't melt at all.