But something is needed to accelerate the butt-toughening. Unwashed, at least a week overdue, cotton shorts sans chamois... maybe some wads of duct tape to roughen up the saddle... and make the trainer's saddle one of those $10 crappy ones you can get at Wally World.
And while at Wally World, optimize your time with some HAB training. Grab a shopping cart, no need to be picky because none of them have a set of functional wheels, creating all sorts of muscle taxing drag, and load it top and bottom with dog food or some other lead-dense bulk item. Wheel away the hours. Hungry? Each checkout chute has all sorts of diabetes-inducing crap to simulate AZT convenience stores in your future. No fluids though, gotta stress those kidneys.
For skin conditioning, we all know how all things pointed and sharp just love to assault the body during the AZT, purchase that loaded cart and head out into the parking lot for some even better off-isle training. Wearing those work-boots, thick cotton sweatpants and hoody you just purchased, to bring on the sweet sweat, right? After a good four hours or so, head back in to get a refund. Attempting to cut the line in Customer Service will bring out all sorts of sharp-nailed fingers trying to punish you for being so daring. This technique might even bring out fangs, if you attempt to cut express lines with another fully loaded cart.
Be creative. Cross training can be fun...
How about setting up a trainer with a heater and a small fan in front of it. For best results set it up in the smallest space possible and try to get the heat way up there.