You are picturing the lights strung up in the trees and the toast that makes everyone tear up just a bit. Pulling off a great backyard retirement party takes some lead-time, especially if you want to dodge peak weekend pricing on rentals and catering. Getting ahead of the calendar is the real trick to keeping costs down.
Since you are working with a typical budget around $2000, timing is everything. Booking your vendors for a weekday instead of a Saturday instantly cuts down on extra fees. Breaking the total cost down into manageable chunks keeps the planning fun instead of stressful.
That 0% intro APR window is a hard deadline, not free money. If you still have a balance left when the 15 months are up, interest charges will kick in on what you owe.