What things do I need to consider before setting a date for the surgery?
Following breast enlargement, because of the soreness, you must have help around the house for the first couple of days. You won't be driving for a week, so someone has to be able to run errands for you.
Stop taking any aspirin two weeks prior to surgery. Aspirin will make you bruise and bleed more.
Don't plan any important social event for at least 3 weeks after the operation. At that time probably half of the swelling in the breast is gone. (At least in most people)