Congratulations, that's so exciting!
Do you have any maternity leggings or pants? Or high waist ones? They go up over the incisions & if you're bloated, are very comfortable. I was in the hospital for such a short time that I didn't need much but brought the long charger, a travel toiletry kit, kindle, phone & a change of clothes.
I was in Rochester in January so don't know if it's as cold now but layers of clothing & good walking shoes are nice because while it may be freezing out, inside places are very warm. If you're used to the activity of 3 kids, you may be restless & walk a lot but Rochester is a great place for that both inside & out. I had a much easier time walking than I did with the seat belt in a car.