What is the point of underwear with the days of the week written

Why do most pairs of socks and underwear come in packs of six and we have seven days in a week? It always seems more logical to have a seven pack. What

DIY Day of the Week Underwear - Studio DIY

* Stock-up on the cutest and comfiest pairs of underwear with this pack of briefs featuring the days of the week! * 100% cotton * Set of seven briefs

Girls Days Of The Week Briefs 7-Pack - Uniform

Daisy Street High Leg Briefs 7 Pack Day Of The Week Pants

What's the point of cheeky underwear? - Quora

Underwear - Wikipedia

* Made of 100% cotton jersey * Contrast elastic waistband * Pack of 7 includes allover days of the week print with glitter detail * Elasticized leg

Girls Days Of The Week Glitter Briefs 7-Pack

Do You Remember? - did you girls have days of the week underwear???

Do you wear day off the week branded underwear and socks on the correct days? - Quora

Why Does Women's Underwear Have A Little Bow On The Front?