As a last-minute packer who always stuffs my carry-on bag the night before a trip, I am curious about any way I can lessen my organizing woes. According to a new viral travel hack, “sudoku packing” might be my answer for easy repeatable outfit combinations I can create with just nine anchor pieces.

Like the grid puzzle it is named after, this organizing system uses three-by-three grids of a top, bottom and layering piece to create a total of 27 outfits from nine pieces of clothing. If you lay it out in your bed, the combinations should look like:

Top row has top, bottom, layer

Middle row has bottom, layer, top

Bottom row has layer, top, bottom