I love The Carnegie Deli. GREAT corned beef sandwiches. You could feed a family of 12 on one of those.

I'll put ketchup on french fries, (once they're smothered in vinegar and old bay of course), but that's about it. I put mustard on my hot dogs with onions. That is unless I'm having a chili dog. I don't put them all on together. I admit I'm a mayonaise nut. That's what I put on most of my sandwiches. My comfort food is a cheese and potatoe sandwich smothered in mayo.