What do you put on EVERYTHING?! [or almost everything]

I noticed while eating with my friend's friend that recently switched into my lunch period at school that she puts mustard on EVERYTHING...

Pizza, chicken sandwiches, corn dogs, basically anything we had that day. To be honest I found it insane.

So what do you put on most of your food?
Mayo, Salt, Ketchup, Mustard, Hot sauce, Radish? Other? Do tell.

Personally I don't put anything on my food. I even eat my hot dogs plain. But I do put salt on my fries ^-^