Dang! Yesterday, I got lucky in the last guess. It came down to two words which I wasn't even sure were words until I looked up to see if they were actually words, and happened to pick the correct one.
Looking up to see if a guess is an actual word before trying to enter it is one "cheat" I allow myself. That, and sometimes guessing a word for the 2nd guess without the first row's green letter to try to eliminate more letters. I know some consider that cheating...