As you are in 'prep' mode
@SuperSnapper, here's a cheeky one that worked like a charm for me, especially if you use 'department store' skin care. Go to the counter of your normal brand (or read up on one you fancy) at a quiet time of day and buy something small that you will use later. Then give it the full whammy and ask if they can spare any sample tubes/pots for when you go in to have hospital. I use Decleor and went to my local big store and did just that. The poor girl asked me exactly what the op would involve, so I laid it on thick. While she was wincing, she asked how many days I would be in and gave me more than enough of all the products that I use. Result!
Most of the prep is logical - just do it while you are still thinking straight. To add to NM27's list, I emptied the drawers on my side of the bed and filled them with TKR supplies so they were easily accessible. Get loads of pillows stacked on your bed, these will be used for elevating, propping yourself up and when you can sleep on your side, you can wedge and prop the ouchy bits. And get your ice supply sorted - you will use tons.
I commandeered our bedroom, and left hubby to fend for himself in one of the others. I am a fidget at the best of times, he needs his sleep and I had a snore free zone! If you have a loo upstairs and down you should have no probs. I could go up and downstairs slowly with crutches from the outset. In the first few weeks I would wake and get showered and dressed and come downstairs. Stay there until mid afternoon and then have a top-up snooze for a couple of hours before supper. Your sleep will be disturbed, hopefully not from pain, but more from getting stuck in one position. It may take a little longer to settle down again, but I had no real problems with sleeping. It's all about getting comfy again once you wake up.
Get a pedi a week or so before you go in, the varnish will have to come off, but it will be some time before you can get to your tootsies again. I bought some packs of useful bed bath wipes! They are huge but brilliant. I could shower from Day 2 - and did, but I found the wipes useful for my feet and they would have really been great if I had not been able to get my leg wet.
Last bit of helpful advice - be prepared for your taste to go a bit out of whack afterwards and also 'knee brain' ie - it will be awhile before you can settle to things and you may well be a bit forgetful for some time.
Make the most of your last few weeks - anything else you want to know, just ask!
xxx