Have you ever thrown out all your different pairs of socks/underwear, bought a bunch of replacements that were all one kind, and then told all your friends how great it was and how they should do it too?
I tried to do this with my socks, instead I must've gotten one pack that is a different size. So now I have some rogue socks among the rest, that are entirely indistinguishable from the rest until I put them on. Then one goes up to my knee, and the other not half as high. This plan backfired in the worst way possible and my mornings are very trying now.