Quick! What day does Valentine’s Day fall on in 2016? You don’t know? We can already see trouble brewing between you and that special someone in your life. Make sure you’re covered when it comes to planning future events with a tiny little object that’s got your back for the next 50 years.

The 50-Year Calendar Keyring was obviously designed by someone who simply doesn’t have enough to stress about. While we wonder if the 2014 holidays will provide us with an adequate number of three-day weekends, someone thought ahead. Half a century ahead.

The clever design of the keychain allows you to find out what day of the week a particular date falls on, from now until 2062. It even stays accurate through leap year (2016, 2020, 2024, 2028, 2032, 2036, 2040, 2044, 2048, 2052, 2056, 2060).

It might not be essential information but it is a nifty little eye-catcher that will get people talking, and that’s not a bad trick for a humble keyring to pull off. It’s available for $6.99 at ThinkGeek.com.