I wanted to add my $0.02 for keeping the doors from freezing shut before winter rolls around. This is what I learned from the cold snap we had earlier this year (5*F temperatures) that confounded this poor warm-weather soul.
1. Silicone spray works wonders, but only if you do it plenty in advance. This seems to help keep the moisture from building in the seals in the first place.
2. Keep an eye on your weather sealing and stripping that goes down into the door. Water likes to find its way in and freeze all sorts of things inside our behemoth sized doors.
3. If it freezes, do not use hot water or you run the risk of breaking a window. Cold and lukewarm water will work just as well. Try to keep it away from the glass while alternating pushing and pulling on the door. Pulling on the door may not be enough to break it open. Pushing tends to be less damaging to the handles.
4. Silicone lubricant spread over/inside the door locks can help keep ice out and keep the key holes from freezing shut. While this isn't a problem, per-se, if your car battery is used to Alabama heat versus what-the-heck cold you may not be able to rely on the remote working.
5. As a random (unrelated) note you can buy hand warming packs (those little goo packs you squeeze to create a reaction to produce heat) and stick them around the battery under the back seat to get it just warm enough to crank. This year I'm debating putting some sound deadening / thermal insulation back there to help with both road noise and to help if I have to warm the battery up.