There were a few things drilled into our heads back in English class: "Funner" isn't a word. Neither is "stupider." Don't start a sentence with a conjunction. Don't end one with a preposition. The list goes on. But as you can see by how I started this sentence, it turns out the English language is a bit more flexible... read full story
"permissible in English for a preposition to be what you end a sentence with."