Dry-practice
I dry practice a lot. Overseas it's frequently the only firearms training I can get due to the unavailability of ranges, or the difficulty getting to them. Stateside, it's the only daily firearms regimen I can afford. First, my rules (not saying you have to abide by these, but you may if you like):
1. NO AMMUNITION IN THE SAME ROOM! I clear out my weapon, check my magazine pouches, and remove all ammunition to another room. Be paranoid.
2. I put up a target (1/6 scale IPSC target). I put it up ONLY after I've cleared my weapon and removed all ammunition from my dry practice area. I put it up on my ballistic vest (if overseas) or in my basement against an external wall (where will the bullet go if I screw up, especially if my family/co-workers are milling around).
3. I wear what I wear when I'm carrying. If I'm OCONUS, I wear work clothing, boots, gunbelt, vest. When CONUS I wear pants/shorts, concealment holster, and cover garment. Train like you'll fight.
4.. I devote half an hour to dry-practice and dry-practice only. No TV, no dog, no wife - dry-practice. I don't view this as something that is necessarily fun, though I don't really mind it, but it is training, and I take it deadly seriously. Total concentration for half an hour. I find that much more than that and I start to fail to pay attention to small details.
5. When I'm finished, I take down the target (BEFORE RELOADING), and verbally, audibly state, "no more dry-practice. My weapon is now hot."
Now that that's out of the way, the actual regimen:
Set 1: Presentation 5x. I begin presenting from holster, going through each step painfully slowly. Fundamentals I focus on are high, firm grip, smooth draw, BOTH eyes open and on target, transitioning trigger finger to the trigger as I complete step 3, picking up the front sight in my periphery then shifting focus as I press onto target.
Re-holster sequence: With weapon at step 3 (both hands gripping, weapon drawn in toward chest, muzzle oriented toward last known threat) search and assess (left, right, and rear), press check my weapon, then re-holster. This exact sequence is done after every drill, or whenever I need to re-holster.
Set 2: Trigger Control 10x. Present from holster, and press one "shot", , working to full speed presentation and "shot", re-acquire/maintain sight picture, and perform re-holster sequence.. Fundamentals I focus on are front sight, BOTH eyes open, trigger control (read: surprise break), and follow-through.
Set 3: Trigger Reset 10x. Present from holster at (or near) full spead and press one "shot". I hold the trigger to the rear while my support hand pulls back the slide enough to reset the trigger, but not enough to eject my snap cap. I reacquire my grip with the support hand, then release my trigger finger to trigger reset before firing a follow up "shot". Perform re-holster sequence. Fundamentals I focus on: flash sight picture, BOTH eyes open, trigger control, and of course, where the trigger resets.
Set 4: The speed/combat/emergency reload 5x. Holster pistol with slide locked to the rear, empty magazine inserted. Present as normal (or as close to normal as possible, simulate pressing a "shot", then go into the speed reload sequence. Follow up with a "shot" on target, and a trigger reset drill if you're ambitious, then perform the re-holster sequence. Things I try to focus on here are not bending over to pick up the magazine at the completion of each drill. I get around this by having several in my back pocket that get rotated to the magazine pouch.
Set 5: Malfunctions 3x. These can be time-consuming to set up and they're boring, but they're also extremely important. To avoid getting burned out, I work on one each day.
First, the FTF - click when you expect a bang. Tap, rack, re-assess. Set this up by having an empty chamber, and at least one snap cap in the magazine. Press your "shot", tap the base of the magazine, rack the slide, re-acquire a firing grip, and reassess the need for deadly force. Perform re-holster sequence.
Next, the "stove pipe". Place a snap cap in the chamber, then pull the slide back enough to set a snap cap in your gun simulating a stove piped brass. Perform your preferred clearance technique. Follow through, then perform the re-holster sequence.
Finally, the infamous FTE or double feed. Lock your slide to the rear and drop a snap-cap in the chamber. Insert a magazine, and slowly ride the slide home. Holster, present as normal, then clear the malfuction with the technique of your choice. Follow through and perform the re-holster sequence.
Set 6: Strong hand only/support hand only presentation and single shot 3x each. Know how to get to your weapon with both hands, independently of one another! One might be all you have.
Set 7: Presentation and single shot 5x. The last drill is essentially a repeat of Set 1, but with a single shot thrown in at the end. I like to slow down at the end, ensure my presentation is smooth, and reinforce the fundamentals.
A quick word on the "press check": Some debate the merits of checking your chamber for brass after each drill. It works for me, and here's why: when live-firing, I like to know that my weapon is in firing condition before re-holstering - round in the chamber, slide in battery, nothing outside my weapon that's supposed to be inside, nothing inside my weapon that's supposed to be outside. And, of course, a round in the chamber. When dry-practicing, it reinforces that technique, and, quite necessarily, it resets the trigger (at least on Glocks) so I don't have to do it in a separate, administrative motion.
I know this was long and maybe a little rant-ish, but I hold dry-practice in high esteem because of its ease of employment, and the level of proficiency it builds.