Agree with everything posted on this page.
Widewing had the best 'word' so far though - perishable. All weapons skills are VERY perishable ones, and like a sword that needs a wetstone regularly, they ability to fly small bits of lead and steel through targets can only be maintained by consistent, regular, and repetitive practice.
Bank Miller was one of my first instructors for dedicated pistol training about 13 years ago (Bank ran the FBI's weapons training program for years prior to designing and maintaining the Air Marshall pistol program). He told me that in his opinion from long experience, after the human mind and body combine to do a task with a handgun 20 thousand times, it will then begin the process of becoming "muscle memory" for lack of a better term. 20,000 rounds of pistol ammo is expensive for average and even non-average Joe, so doing dry fire and dry run drills repeatedly and consistently can speed a shooter along to this blissful place of "not thinking about it".
Widewing, I shoot at playing cards with my single action handguns as well! I laughed when I saw those pics. It makes me feel old-westish, without having to wear a cowboy hat or get all cowboy action shooter'd up. My old shop was the Canadian distributor for all things Uberti for a while; absolutely love their single action revolvers, although I do enjoy the Ruger's as well, and they are both great values for the money. If I ever have kids, although it's getting late in the game for that, their first pistol will be a good single action .22 cowboy style revolver.
I also again can't stress the value of simmunition/air munition training as well. The added pressure of shooting/drills vs a clock with spectators is multiplied be the square function when you start involving a small bit of stinging pain and proof of your failure while being observed by your counterparts

. If you ever get the chance to train with it, TAKE it, and if you don't, try and make it happen. You won't be sorry, it's truly one of my favorite parts of any shooting course if it's part of the syllabus. Also, if you get a chance to train on how to engage threats through vehicle and other windows, do the same. There are very specific techniques to shooting through a window when you're close to it, and they are not only very practical, but a blast. Holding your pistol's slide to the front while shooting a single round then manually cycling your weapon to reload isn't a skill that ANYONE will just pick up along the way - it requires training. But does it ever work well. It'll blast the passenger side window you're sitting beside into a zillion fragments when the muzzle is just barely touching it, and the full force of the explosion that is throwing the bullet is put into the glass by holding the pistol's slide ahead....try it if you get a chance, even against a cardboard IDPA target, and you'll see why it is so effective in removing the barrier you need to fire through.
Ah...there is always so much more to learn...I've found they more I've learned that I find out about even more things I need to train on. If any of you get the chance to view Magpul's video's on pistol and carbine shooting, please do so. While I don't agree with everything they push, I personally agree with most, and both their instructors acknowledge this and even praise it, which while not totally rare in the tactical shooting world, is at least appreciated for such a commercial venture these DVD's are in the shooting world. I 've trained with one of the instructors from Magpul in the past and IMO he is very VERY good at passing his knowledge onto others, as well as being very capable at what he does. If anybody is interested at giving any of the DVD's a look, fire a PM at me and I can lend you mine as well as some of the stuff we used at SigArms Academy. While there is no substitute for being on the range, I've found videos to be the "dry fire" version of an actual course, and not without value.