I'm glad you get to go home tomorrow- you'll be much more comfortable in familiar surroundings. After my 2nd TKR (last week) I was determined to get into my own clothes asap despite an IV and foley catheter. And I did! I made my daughter help me, poor thing. When my OS knocked the following morning I was dressed, smiling, and sitting on the edge of my bed having breakfast. He was floored, HA!
I have a tip to share regarding "regularity" that I picked up from some female celebrity (Cameron Diaz?) on an a.m. talk show, and it really works: WATER. Every morning have your breakfast, then drink the better part of one of those 16.9 oz bottles of water. Follow this up with a little walk around the house. You will go! The hardest time is the first time due to surgery drugs still in your system. I recently purchased a purified water dispenser to remind myself to drink, and so I wouldn't keep buying wasteful plastic bottles.