If you haven't played with your bindings before, don't bother starting now! There have been discussions here in the past about turning them down or not. I don't, but some do.
As for waxing - at the end of the season, before you put them away, it is a good idea to get a summer service - Snow & Rock, or whatever ski shop you use, should be able to do that - basically, they load the wax on, but don't scrape it off/polish the base.
If you want to do something easy, but worthwhile, but some WD-40 or Vaseline on your edges to prevent corrosion. Before you take your skis in for their start of season service, wipe the oil/vaseline off.