12. Candles
Duration: 6–12 months
Cost on average: $5–$40*
Candles with strong scents typically last between six and twelve months. Over time, their color may fade, texture may change, or fragrance may weaken.
Candles copyright Shutterstock/New Africa
For the best experience, use candles within a year of purchase. A candle is considered "expired" if it no longer smells or burns as intended.