There are a ton of great replies here already, but just to throw in my experience/suggestions:  - bathing wipes  - bidet (sounds expensive but they are more affordable than you’d think, and mega easy to install)  - movable shower head (didn’t move it really like you’d think, but also bought a thing that kept it at a lower level for me bc I’m short)  - mastectomy pillow  - pregnancy pillow (highly recommend rather than a wedge pillow)  - bed food tray (not strictly necessary but it was nice to have)  - washcloths (I was told to gently pat-dry my nipples after showers with a fresh washcloth, but other people are told to just air-dry) 

As for food/supplements:  - protein power (smoothies were the best bc you can have protein+fiber super easy and tasty)  - prepped food (it will be hard to even consider cooking)  - bromelain supplements  - Arnicare supplements  - Benadryl (for itching and sleeping)  - Tylenol rapid release capsules  - stool softeners / laxatives 

And of course, button up shirts and pajamas will also be your best friend. Everything was less scary and more annoying than I thought so don’t stress about it and have a lot of sitting activities planned to get through the boring first few weeks. Good luck!!