Yeah, I've got a few strategy guides. Some of the Brady Games ones are very good though they can contain a lot of errors. I only ever use a guide once I've completed the game once though. If it's a game I enjoyed I'll get the guide, replay it and get everything!

My FFVII Brady Games guide is annotated to all hell. Literally every page has something written, original text crossed out. It's like The Half-Blood Prince's copy of Advanced Potion Making