Growing your own food

[Auskan]

I'm just curious how many people grow their own snake food? I have a Ball Python, a Garter snake (currently brumating) & 2 Corn Snakes, and with the recent addition of the corns, I realized that my feeding bill was getting higher than it would cost me to raise my own. So last weekend I purchased a CritterTrail house, one male and two female mice and I'm now anxiously awaiting my first litter (in approx 3 weeks :-) ) Anyway, mostly I was just curious how many people have gone this route, but I also have a couple of questions:

1) Obviously pinkies are newborns. What age are fuzzies, hoppers, weanlings?

2) I feed my ball python 2 fuzzies a week & the corns a pinkie each every five days. I figured 2-3 female mice would be sufficient to keep me in food, but I'm just guessing. Any input?