I sympathise. I broke my wrist 2 years ago, on the 2nd day of a holiday in Croatia. It had to be manipulated. (the hospital treatment was marvellous - seen, x-rayed, plastered and out in 3 hours) when I slipped on some wet steps, put my hand out (as you do). The plaster I had was different to the sort here - it was waterproof, lightweight, but still a proper plaster. The QMC - a very large hospital in Nottingham- hadn't seen one like it so they kept it when they cut it off. I had the plaster on for 4 1/2 weeks.
I found that getting my bra on and off was the trickiest thing, so I used to fasten the hooks, then step into it, pulling it up over my hips etc.
As for exercise, you could still walk. Housework? Use the vacuum one-handed.....or not bother too much. Wear trousers, jumpers, stretchy clothes.
I didn't have physio, but I have to say that my wrist was weak and painful for about a year afterwards
.
Good luck.