Also titled "How to Get More Socks Without More Knitting"
Yup. Notice that some of your socks are wearing thin, but don't have actual holes. Think to yourself, this would be an excellent opportunity to try mending them using duplicate stitch, to see how it lasts. Throw the socks in the "almost forgotten but will eventually be finished" drawer because you don't have time to go down to the stash to find the leftover sock yarn bag.
Wait for time to pass. How much time depends on how many kids you have, if you work full time or not, if you have a puppy, how cold your house is...
One day, open the drawer and root around for a needle gauge. Find the above-mentioned socks. Say, "Wow, these just need to be darned and they'll be like new!". Forget about the needle gauge, go get the leftover sock yarn bag and your coffee. In 20 minutes, darn the socks and put them back into rotation. Presto! You've freshened up your sock drawer without having to make a whole 'nother pair of socks!
You can thank me in sock yarn :)