Thieves like to get in and get out of your home as fast as possible. This DIY hideaway for your valuables sits in one of the last places they’ll ever look: your fridge.

When a burglar goes rummaging through your home, they probably aren’t going to spend time digging through your food. That’s why this custom jar safe from YouTuber Grant Thompson—The King of Random—is perfect for hiding your cash or other small valuables. Empty out a jar of mayo or dressing (or save the jar when you finish it), paint the inside to match the color of its original contents, and you’re all set. You can even create a false bottom with a cheap tin of cat food and make it look like the jar is actually filled. There are a lot of great places to hide things in your home, so there’s no reason to keep your stuff out in the open for thieves to see.