Well, my two sons will be off to college next year (and I thought boating was expensive

So, I'd like to know if some of you had actually have left your boats on dry storage for one season or more. What precautions for the inboards and the outdrives, the cabin, cables, electronics, etc. should I take? Maybe I'm overthinking it and just the typical haul and wrap for the winter would be enough.
Thanks in advance for your replies!
PS. I would be leaving the boat stored at the marina where it's at right now, as we don't have a trailer for it.