Hmmm, well, let's see. I'm only 14 (this is my first post here BTW, hello everyone!) so my fishing isn't quite as extensive as some of yours, but I guarantee one day I will be like Nick! ;D
Anyways. Preparing for openers? Nothing too intense. Tackle cleaning with my dad, buying more of whatever lures worked the past year, and a few extra lures to try as well. Usually I don't set the rods up until we're up north at the cottage (because that's where we do most of our fishing), so that doesn't require too much time. Right now I'm getting ready to do some local lake & river fishing next summer though, so that's going to require some preparation I'm sure as I find more out about what I'll need equipment-wise.
Do I improvise during the season? Kind of...really given my age I'm only really learning fishing as an art right now. Before whenI was a little kid we did a lot (almost exclsuively) fishing with live minnows & worms, but now I'm learning about using spinnerbaits, crankbaits etc...hopefully soft plastics this year as well.
How often am I on the water? Owch, not enough! Generously perhaps 30 times a year? As I said though, this coming summer I plan on doing a lot of river fishing and just off the shore of Lake Ontario, so hopefully that'll bump my number of days up a lot.
Usually the actual fishing breaks down to whenever we're up north at the cottage we get out 2 or 3 times a weekend..sometimes we'll move around to different spots and still fish or we'll just troll the perimeter of the lake for a few hours. Once or twice we'll go further north to Lake Nipissing and take a guide out and fish for big bass or pickeral...hopefully we'll do that twice this year, we did it once last year.
We do ice fishing, usually only once per winter though because we live in the city so its like a 4-hr drive to get to somewhere where we know we'll catch fish...I suppose we could drive an hour or so to Barrie & do Lake Simcoe...hmm...something to think about. We've booked a date up north for early Feb this year...hoping for a handful of pickeral.
Usually we're in Florida once a year on average for a holiday..anywhere from 4 days to 9 days depending on how the school schedule & whatnot works...there's a nice river nearby I fish for catfish in while we're there and I fish off the shore, or a pier if one is nearby quite a lot while we're down there.
Which leads me to talking about the *big* trip of the year! Yay! We're gonna be going down to Fl. for about 5 days in early April & booked a guide for Lake Tarpon..I can't wait, I'm hoping for some huge bass! It'll be my first time seriously going after southern bass (which are quite famous here in Canada!) and I absolutely cannot wait...should be awesome.
What do I do during the offseason? Heh...this, I guess. Gonna try to frequent message boards (fishing ones) this winter...also going to read about lakes in our area up north to try to fish next summer (because the one the cottage is on isn't very productive anymore)...also hopefully the ice fishing will help cuz I do miss fishing already! It's still a 2 month wait until that though ..gah.