Like most Americans, you probably have a long-unused gift card lying somewhere, half-forgotten. In fact, more than half of Americans have unused gift cards totaling an average of $116 per person, according to a 2021 survey by personal finance website Bankrate.

If you need a reason to finally spend it, consider rising inflation, which has reduced your gift card's value by roughly 13% since 2019, according to CNBC calculations using data from the U.S. Bureau of Labor Statistics' consumer price index (CPI).