I buy mostly the same color and brand of socks as I have come to find them to be the most comfortable for me. I absolutely hate it when I am wearing snow boots, cutting firewood or shoveling snow and my stupid socks are working their way off my feet and down into the toe of the boots. I Have to pull the boots off and yank the socks back up. Once that happens I never buy those type again. So I know what socks I like. I get them in 3 pair packs when they are on sale. The problem is even though they are from the same company they never seem to be the same from one year to the next. And after being worn a while they get thin on the bottoms. So if you put a new one with an old one the colors might match but they don't fit the same or feel the same. Because of this I like to match them up with the ones that I bought together at the same time. That used to mean going through them and comparing the wear on the bottoms and matching them with ones that looked the same. It just took forever. SO I hit on the idea of sowing a different colored thread into the toe every time I bought new socks. It's simple, all the ones with blue thread were bought together, red, yellow, and so on. Now to sort socks all I have to do is pick them up by the toe, match up the thread colors and its done. Way less time, way less aggravation, and they always match. If the threads don't match the socks don't match.
Step 1: When You Get New Socks Sow a Colored Thread in the Toe
Step 2: Match Up the Threads and Your Done
When I first started doing this I only sowed the thread into the new ones I bought. I left the old ones unmarked. Now its the older ones without the thread that are always in the bottom of the basket. I do the threaded ones and then skip the rest until I get a few extra minutes to match them up. Somehow I never seem to get them done.
It takes a few minutes to sow the thread into them when you first get them, but the time you save later makes it well worth the effort. Its an easy fix for another of those little aggravations that we deal with every day.