Originally Posted by loosie
I'd say have LOTS of 'bombproofing' sessions. In lots of different environments, as horses don't generalise well.
This is very important. I have friends that spend a lot of time with desensitizing training at the barn, only to find their horses still spooky on the trail or when out alone.
These are all good ideas, but keep in mind that these are just training tools. Nothing will replace time, age, and miles in the saddle, and even then some horses have their own special set of monsters that they never fully overcome.