It seems like Scenario 3 might be the toughest. Do you have good cell reception all along your commute route? and I'm suggest very best method for you water filtration system.

Thanks Mary and welcome to ETS!

Cell phone coverage is pretty good along my normal routes. I lose connection sometimes in thick bush and on my Northern route home, but generally avoid that way home in the winter.

As for water, my primary method of making drinking water is by boiling and filtering with a bandanna. I also have a filter straw, but I've moved it to the other half of my Get Home set-up, as I can rely on melting ice and snow right now when I'm hiking, although I do have a few MicroPUR tabs in my FAK. I tend to use filters and tabs more when I'm backpacking in the summer and am relying on ground water. Besides, in the winter, I benefit from the heat produced by boiling.

Great advice, canoedogs! I often use my buff, but do have one of those lanyard-thingies too. Using pockets without a hard case = broken or lost glasses.

FWIW, here's a peak at the contents of my day hike kit/Get Home Bag:

http://www.youtube.com/watch?v=5pnoNOdK2yc

I like your winter bag big time!! Good planning on your part!!

I am jealous of the lid you've found for your canteen cup. I will find them as soon as I can.

Your preps are definitely NOT foolish or extravagant as evidenced by the Atlanta CarMeggedon!!!