neat way to remember your combination lock

Add your birthday - anniversary - whatever date's important to you - to your combo lock. So if your birthday is 1/1/71 and your combo lock is 24/5/37, your new number is 25/6/108. Write it in permanent marker on the back of your lock or on your bike somewhere. Not knowing what to add, it won't help thieves any, but you always have your combo!