First, I'd change it to a positive by saying "getting rid of the cancer" instead of "cutting your boobs off". Attitude is important! What does your breast surgeon/nurses say about what to bring? I woke up in the hospital 8/21 with my chest stuffed, wearing an industrial-strength bra, which I was to wear for the next several weeks.
One thing I'm glad I did--before hand, go to Goodwill and buy about 12 different tank tops. I never could wear them before my surgery (was too bosomy), but now it's fun to pop one under my clothes every day! I have a great variety of them and didn't have to worry about them getting blood or drain fluid on them. With this new ability to wear these cute tops, I rarely miss my large breasts any more.
Will have reconstruction sometime after chemo, and will opt for a DIEP procedure. That way, I'll not only get the smaller breasts I want this time, but a tummy tuck as well! Those are the positive thoughts I think of whenever I start worrying about my cancer.
Good luck & stay in touch. There are a lot of women out there who have absolutely thrived after going through what we need to go through! :-)