Not a dumb question monkers. Hats off to anyone waxing and tuning their own skis - you do get to know your skis better, and, over time, you figure our what works best for different conditions. There are some good instructions and videos you can find online, youtube has some good instructional videos. I do not mark my skis left and right, and most people I know don't either. I know several amature racers and they do not tune inside edges differently than outside edges. Another benefit of same tuning on both edges is that you can switch skis to the other foot throughtout the day to give you "fresher" and sharper edges, as generally, the inside edge will dull faster than the outside edge. Go ahead and jump right in and start waxing and tuning - no need to wait for "eventually" to do your own tuning, it's not really very difficult at all. The only thing that I would delegate to a shop is a stone grind on the bases to get the texture, and possibly setting the base and edge bevel. If you have new skis, they come with a factory base texture and base/edge bevel - if you are satisfied with that (which is adequate for the majority of skiers) than go ahead andget started on your own waxing and tuning. Unless your spending top dollar for a high-end wax and tune from a true professional, most waxes and tunes from a low end sporting goods store, or from a lot of resorts, are just thrown on a wax/tune machine and completed within a few seconds. This is better than nothing, at least the wax helps protect the bases - but I found it doesn't make much difference in performance. Once you start doing it yourself, you'll find that you will get much better performance out of your skis on a variety of conditions.......and, sometimes it's nice to spend some nice quiet time in the garage with my skis, giving them the love and care they deserve.. it beats staying in the house listening to a nagging spouse!