I think you just have to grin and bear it. It will be worth the pain.
We have a loft conversion done last year, which affected 3 out of our 4 bedrooms in addition to the work that was going on in the loft. There were as many as 9 men on site at the beginning. I was basically at home with a 2 year old.
When we were at home, we sat in the living room with the door and curtains shut, and an electrical heater for the days that the central heating was out of commission.
I did provide the tea - they drank about 50 cups a day, but it was January and I didn't begrudge them it - they were so grateful!
They really didn't use our loo. They must have gone at the local caff at lunchtime, or au naturel at the bottom of our garden.
One tip is to know who the onsite foreman is and make sure you keep the communication lines open at the beginning and end of each day. If there are problems with your neighbours (parking, mess, noise, getting access from their property), get the foreman to deal with it exclusively.
Also, be prepared to be frustrated. If your job is anything like ours, it will go amazingly fast at first, but will then slow down as the main crew leave and you are just down to one or two tradesmen.