That first birthday sneaks up fast, and the pressure to host something perfect is real. The best way to keep costs down is to treat the planning like a project rather than a last-minute scramble.
By booking your park shelter six months early, you sidestep the massive rental fees of private venues. Spreading the $500 total cost over the coming months keeps your bank account steady while you focus on the cake.
Remember that the 0% window is a deadline, not a gift. If you have a remaining balance after the 18 months are up, interest will start adding up on what you still owe.