I can get most cars, most places in most conditions. I find it hilarious watching drivers in 4x4's spinning down a hill when I'm in an auto rear wheel drive car that weighs nothing and I can get up and down the hill perfectly safely.
Main thing is get the car in 2nd gear and go everywhere at 20mph when it is slippy. You can do anything at 20mph in 2nd gear.
If you skid take your foot off the accelerator, straighten your wheels if you can and the steer when your wheels hit good road.
Acceleration should be slow and steady, drive like you have a tray of water in your lap! I certaily don't want to get wet!
In winter/slippy positions I personaly avoid 1st gear like the plague! Not always possible in automatics but if you can I would do it.