Re Rite in the Rain - I don't even consider that part of a "kit" I just have a pad of it in my glove box (and have for at least 8 years) that I use all the time.

Re Footwear - I often have a pair of muck boots in the trunk that I've walked countless miles in, and actually run in a bit as well. My biggest problem is any shoes I really want to walk that far in I want to have to wear all the time! I guess I have an old pair of hiking boots I could test and leave in the car if they're still worth anything.

Best thing I've done for my feet (and I've posted about it elsewhere on this forum) is start running in Vibram Fivefingers.

I actually forgot the fivefingers in February when I was running a slow 10k (I can only run slow) so I wore water shoes that happened to be available. They worked fine. When I used to run in sneakers, not having sneakers would have meant I'm not going anywhere.

Now foot fatigue from bad shoes is a thing of the past. I still couldn't run very far in say dress shoes due to likely rubbing though. Also, if anyone starts going out in fivefingers I think they'll be impressed with how well their feet deal w/cold weather so long as you're moving! I was at least.