Okay we all know that normally when cooking grilled cheese, you butter up the pan. Well, I'm here to let you all in on a secret (that could already be known, but w/e). Try using mayonnaise in the pan next time instead of butter for your grilled cheeses. It is fucking delicious. The grilled cheese will come out more crispy rather than soggy, and the taste is just amazing. The sandwich will however be a tad more greasy, but fuck it, that's what makes food great, amirite?
Mayonnaise in pan > butter in pan.