You're going to get a lot of advice, but here's mine
Get yourself a bedroom night light that's bright enough to see when you have to get up and change the big pee container during the middle of the night. I almost stepped in mine a number of times.
Get the biggest bed pads they have to absorb nighttime leaks. I got the small kind and they don't work. I actually woke up with that pad stuck to my backside.
If you have a lot of pubic hair trim that bush before surgery. I wound up with pubic hair tangled on the Cath tube.
Drink lots of water, sports drinks and clear liquids. You will want to avoid hot liquids and stay with cold liquids with lots of Ice.