I’m sure that Shakespeare wouldn’t mind my re-writing one of his most famous and quoted lines—as long as it’s done in the name of good grammar.
Most people don’t have problems remembering that two refers to the number 2, just as twins (notice the tw) refers to two (notice the tw) of something. The problem usually comes in trying to determine whether to or too is the preposition.
To is the preposition. (We’re going to the opera. They drove to the lawyer’s office.)
Too generally means also (You can’t have your cake and eat it, too) or refers to something done in excess of what is normal or desirable (The soprano was too loud).