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This is a very good packing mechanism, and as has been noted by others, good for packing outfits. Tee shirts, underwear and socks carefully folded into a single roll. It would work less with the shorter socks, but still is pretty effective for planning an outfit. This is good for work outfits, packing travel bags for short trips or for long trips.

Awesome packing tip called a skivvy roll. Teaches how to save space in your luggage every time you travel. Budget travel lovers will enjoy this technique because it can mean less packed luggage (and fewer fees).

Math

math: Fun math trick and a visual representation of multiplication that actually makes sense and goes pretty quickly (aka students don't have to draw 25 groups of