First of all, Happy New Year to everyone on here and I do hope it will be a good healthy year.
Limejelly- I had a wire guided wide-excision to remove cancerous lump last January so I'll tell you how I got on. (Don't panic - I'm still here and in some years 2010 was a good year depsite the traumas)
So, you need to think in terms of a team of support people ie friends, relations and anyone who offers help. Even if you don't need them all at the start, you'll find them extremely helpful as things go on. People generally do want to help, and if you have a couple of friends you'll find they become invaluable, especially as you may well not be able to rely on family. (I have no family anywhere nearby and no parents or parents in law so friends were my main support)
I think the DCs will rise to the challenge of helping you if you can explain what sort of things you need help with, and perhaps some specific jobs they will have to do.
KK's idea of stocking up the cupboards is excellent. Personally I found cooking a pleasant distraction too, (but with your broken arm out of action that's worse). When people ask what they can do, ask if they could make a couple of batches of soup and freeze it! Or, as you say, sauces etc. One or two of my friends just turned up with meals a couple of times - wonderful!
I found the arm area was painful for 6 weeks due to nerve damge after they'd removed a sample of nodes. I just kept taking the pain-killers. Mine was also a bit worse than it should have been as I got an infection which involved a second op shortly after he first. I think most people don't have to take so many pain-killers. There was a day when suddenly the pain levels reduced and it was a relief as the pain was rather stinging unless I kept taking stuff.
I can't recall when I started driving again (shocking memory) but it was probably 3 weeks. Will check my diary. I'd suggest you ask a friend to do school run for at least 3 weeks if you normally do this. You can always stand down the arrangement if you're fit more quickly.
The op does knock you out a bit, so I did lie around on the sofa a lot for a couple of weeks, and just pottered about the house. A long distance friend came to stay for a few days which was great. You get your strength back gradually.
It is quite individual though. I did not have sentinel node business and I think its less invasive if you have that than the sampling process I had. The good thing however, was that although I did later have to have all nodes removed, this was not anything like as painful and I didn't need any painkillers afterwards at all! I was amazed. Also, it was my bad luck to get an infection as that's unusual.
Don't worry if you have to have wire-guided incision as that was straightforward and didn't hurt. Are you having this?
Are you possibly having chemo? You don't mention it. For me this was a much more significant process than the radiotherapy. Rads were straightforward and although I set up friends to give me lifts I felt a bit guilty as I didn't really feel I needed them. Towards the end I just drove myself for about 5 or 6 sessions. It was nice to have company for the others and again, people were very keen to help so it was fine. I had to drive 45 mins each way and thought I'd be completely whacked. I did get whacked out but this effect came after the sessions were all over as the effect continues for a number of weeks.
All in all, I'd suggest you take one step at a time, and don't worry too much about looking more than 2-3 weeks ahead. This journey varies and you will have to find your own route through, as different obstacles pop up when you might not expect them. This thread is great because for many issues, one of us has been there before and can help with questions.
For hospital - loose Pjs or nightie with fastening at the front, slippers, books, IPod, toiletries.
PS you've reminded me how I should be careful about my affected arm!
I do wear gloves for gardening and dirty jobs but otherwise I carry on as normal. I do find it good to stretch out my arm with a few exercises or swimming, as it gets a bit tight. Nothing serious though.
Good luck.