Looking after your golf bag:
One of the best tips for caring for your bags and clubs is to keep them indoors when you're not using them. Many golfers tend to leave their bag in their car trunk or in their garage. But this exposes the bag to drastic changes in temperature and moisture, both of which can ruin a nice bag and set of golf clubs.
Besides just a bag, you need additional equipment to protect your clubs. Many players follow the tip to put head covers on their woods. This protects these big investments from accidental dings and nicks. Some pros even recommend this tip: use covers for your irons and putter during storage, too.
One of the best ways to keep your golf clubs clean during a round of golf is a towel attached to your bag. This tip only works if you remember to actually use the towel! After every golf shot, whether or not the golf club head has a divot stuck to it, give the golf club a good wipe with the towel on your bag.