I have done all of those things over the years. The only thing I would definitely not do again is add any sort of 'stabiliser'. (I'm assuming it's petrol). The one time I did that I had to syphon the tank empty and give it a full clean out with rags and paper towel, clean the pipes and replace all filters. After allowing the fuel to settle in the containers I syphoned the clean stuff out and used it in my car. I was left with litres of brown gunk that had to be disposed of.
Since then I leave the tank half full or more. At the start of the season I use a syphon that reaches right to the bottom of the tank to suck up the water that's accumulated in the tank (I use old fizzy water bottles to collect it in). Usually pump about three litres out, which separates to give no more than a cupful of water and no horrid brown goo. I put the petrol into my car.
I've had no trouble using the old fuel at the beginning of the season, though try to add some fresh to the tank if there's space - doesn't take long to make some if there isn't.