Dry fire practice pays!
I shot my first IPSC match in July of last year, then once a month since then, and I'm progressing well. At the last competition there was a stage where I averaged about 2 shots a second accurately. I doubt I would have even been able to get that many shots off that quickly at all, let alone on target, at this time last year. I've also noticed that my shooting has vastly improved with any kind of gun, from shotgun to rifle to BBs, now that I know how to control the trigger.
I've only got two hands, but I've been known to carry three Glocks.