OK, I'll bite.
What can you do for a guy who carries a pistol without a resettable trigger?
For follow up shots, you have three options:
1) Resetting triggers: These are available for glocks, and come standard in some weapons (i.e. double action revolvers) The replacement triggers tend to be pricey, and I would personally recommend option #3 over purchasing a resetting trigger, as you will end up spending about the same amount of, or more, money. Manual actions also fall in this category, such as pump action shotguns, as the insert will stay in the chamber when the action is moving.
2) For AR-15s: The SIRT bolt replaces your bolt carrier group and operates from the motion of your trigger bar when you press the trigger. The switch inside the bolt has built in resistance to simulate a ~6 lb trigger pull, and, if you are willing to wait and pay the extra $$, we can special order a different trigger pull weight. These are a bit tricky to get adjusted to your AR the first time, but once it is set, it is just a drop in mod that takes only about 10 seconds to switch out.
3) For pistols: Dedicated training pistols, called SIRTs are available currently for full size glocks. There are a few different versions of this, depending on features. An M&P version is in the works, although the release date keeps getting pushed back. We are on the short list when it gets released.
Keep in mind:Now, if none of those fit the bill, then you will have to rack the slide between each shot, just like you do during normal dryfire. This doesn't keep you from getting good training, but it does limit some options, and hinders the fun factor.