I'm new here and new, again, to pipe smoking after more than a thirty year layoff. I wanted to find a pipe smoking forum which gets used frequently and this looks like a good one. So, I have a question right off the bat. I'm in the process of smoking various samples to find what I like. When I do find one I really enjoy I'll probably buy it in bulk. My question is this...how long can you keep tobacco and still have it retain it's quality? This will determine just what size I purchase. Thanks, and glad to be onboard.