I've had to endure life on crutches a couple times due to knee surgeries. I found that carrying things and getting along was fairly easy if I pre-planned before the surgery.
- I put everything that I would normally use in an easily reachable spot that didn't require bending or stretching.
- To carry things as I "crutched" along, I bought a rucksack with several pockets. I also used a fanny pack at times.
- To manage moving things like plates and drinks, I bought a cheapo plastic server cart at Walmart (about 3 feet high, with handles that made it easy to push).
- I facilitated showers by bagging up my leg (from mid-thigh to below the knee) with Saran and using surgical tape to keep water out. And I bought a cheapo plastic stool to sit on while I showered.

Good luck with your surgery and healing!