I can truly feel your pain!! I fell on black ice over 2 years ago and along with other injuries, I broke my right leg in 3 places and ripped my right foot off! I had to have everything plated and screwed back together! No walking... no driving... no fun!!
Some things that I found helpful that might help you, too...
Get a tote bag or something that you can easily wrap around your neck to carry things. Like someone said above it's hard to have anything in your hands when you're on crutches or a walker.
If you have a cast before they give you a boot, you'll probably have problems finding a sock big enough to cover your toes to keep them warm. I found that a baby's stocking cap worked just great.
To take showers, I put a plastic patio chair in my standup shower. It had arms and was much easier too use and WAY cheaper than using one of those benches that you get at the medical supply store. I just kept my leg outside of the shower.
And if you don't already have one, get a handheld shower head with as long a cord as you can find. They're reasonably priced and easy to install.
Since you've already had a surgery, you may know about medical supply stores. They have all kinds of things to make your life easier. The things that I found most helpful were:
bags for over your cast so you can shower (kept the cast MUCH dryer than the garbage bag and rubber band that I had been using!)
a switch that I could turn lights on and off without having to get up (Hubby couldn't find a Clap On Clap Off like the commercials)
a long armed tool so you can reach things without getting up (we came to call it the a$$-grabber because thats what I did with it when the Hubby would walk by)
I hope you can have someone with you for a while because you'll have trouble getting around at first.
Let me know if you have any questions or if I can help in any way!
Good luck with your surgery.
Oh.... and if you don't already have one.... get a laptop and wifi. You're going to be on YT a LOT!