I had my op 9 days ago. I agree, have everything on the list, available and ready. Except the sports bra, if your a guy, as am I. (I may try one to see if it helps any ...lol)
If you have something that sooths your stomach, you may want to have it on hand also. For example, when I feel the need to throw-up, I can drink pineapple juice and my stomach calms down immediately.
One other thing. If you don't get the "gas" off your stomach fast enough, it will get into the cells. Once the gas has settled into the cells, it will cause the infamous shoulder pain :angry .....a heating pain will help with the pain, but walking - a lot of walk - will work the best.