Gore cables will help keep things running smooth unless it is cold enough for your derailler linkage to freeze but that isnt going to happen until the low twenties and you dip you rear wheel in water or mud, which really only happens if you ride through streams at that temp.
If you ride during the day or evening, you have awhile until you have to worry about anything. If you ride early in the morning, we could see temps in the 20's quite soon. Really the only thing I do is maybe switch to a heavier chain lube and maybe play with air pressure in my fork.
If it is below freezing and your bike gets muddy, just leave the mud on because trying to wash it off with just introduce more water to your bike, the mud acts as a protecting barrier, especially if it doesn't get much above freeze for a few days.