Yes, it's true, your golf clubs will not stay put if you don't strap them in. They are like children, always causing trouble.
Turn the bag so that you have access to all the pockets. The pockets of a golf club bag can hold such useful items as:
- golf balls
- gloves (I have three pair--one for wet weather, one for dry, one for playing in with a group)
- ball retriever
- mosquito repellant
Be sure to grab the strap, wrap it around the golf club bag (avoiding locking in your putter if you have a side pouch) and through the lock. The golf clubs also won't stay on the golf cart for long if you don't lock down the tab. It pays to check this strap if you go over a lot of hills and lumps and rocks because sometimes they can shake lose.