So first, and most important, take a reactivate class, or Padi equivalent. You forget those motor skills quickly and it’s worth the time if you have been out of the water for a while. Check out Steve Prior, he goes through the 24 teaching steps that instructors need to master, and no, you don’t need to be an instructor to get value out of the videos. Bring your gear in to be serviced, it’s worth the extra $100 or so. Try your gear on and make sure it fits. Sometimes winter isn’t friendly to our waste lines. And if your gear is snug, bring along a couple extra lbs of lead just in case. Check out the Dan website to see what new methods, techniques, concerns, etc, are happening in your diving areana. And don’t forget to take it easy on your first dive.