Do all the presents you give away over the holidays look like they were wrapped in the dark? Don’t worry: this video features a series of mathematical tricks to help you ensure your gifts always look neatly wrapped.

Covering the full gamut of geometrical shapes and squishy items, mathematician Katie Steckles shows us how to wrap all kinds of gifts in this super-useful four-minute video. Be warned, though: the best technique of all does require an equation, as well as a little practice.

[Katie Steckles via Flowing Data]