A system that keeps socks in pairs
Short answer: Buy the same style in the same colour. Then every sock is a pair and you never have to search.
The problem with many styles
With fifteen different pairs, each sock has to match exactly one other. If one goes missing, the other is useless. With ten identical pairs, any sock works with any other.
How to do it in practice
Choose a style you like and buy it in the colour you wear most. Top up with the same style next time you buy. See bamboo socks for men.
Two colours cover most of it
Black for work and dark grey or navy for the rest cover almost every day. With two piles the choice still takes one second. See all bamboo socks for men and bamboo socks for women.
Frequently asked questions
What about socks worn to different degrees
Replace the whole set at once, then all pairs are the same age again.
Should socks be rolled into each other
No. That stretches the cuff. Lay them flat together or stand them upright.
How many pairs do you need
Eleven to twelve pairs let you wash once a week.