This subject has always been a hot topic on forums. The majority of people hate them, I use them. I don't like them but I use them to protect my AP1's, and I don't want them beat to crap. They get more abuse from club chatter than actually hitting balls with them. I used them with a set of TM 1.0's, and when I sold them I got top dollar for them because they were in excellent shape. IMO, its no different than using a headcover for your driver.
To answer your question, Club Glove makes a great one. Which is the one I bought. I believe they make them for all club sizes. Just check the back of the box to ensure they will fit your clubs. These fit great, and do not fall off. Takes a whole 2 seconds to put on.
To each their own. I can certainly understand you wanting to protect your investment but I also feel that due to the fact that you are swinging them in the dirt, they are going to get beat up eventually no matter what you do.
IMO, woods and hybrids are very different because with them you have the very real concern of paint chipping, not to mention the annoying sound of them clinking together all the time.