A great balloon installation turns a standard living room into an actual party, but good artists book up quickly. Two weeks out is usually your sweet spot to lock in a date before their weekend calendar fills up completely.
If a $300 bill hits your checking account at an inconvenient time, you can buy yourself breathing room by spreading the cost across several months without paying extra fees.
Remember that a 0% APR period is just a temporary timeline, not free money. Make sure you clear the entire $300 balance within the 15 months so you do not get hit with regular interest rates later.