While this entry could be about how things are going right now (I have a few too many balls in the air at the moment,) this is actually about something I do to make sure my socks are the same size when knitting. Some of the women from the knitting group were curious about it, so I decide (a while later) to post it here in case it serves anyone else.
When someone saw the thread running up the sock, she asked if it was a lifeline. I said no, and then I quipped that it was a sanity line, so that I don’t have to count the number of rows over and over (and over again) while doing the second sock to make sure I did the same number of rounds for each foot when there is no discernible stitch pattern to easily count.
To do the sanity line, I just take a tapestry needle and weave a scrap piece of thread in every five rounds and out every five rounds from the end of the toe shaping to the beginning of the heel. I do the same thing on the second sock while I am knitting it. Breaking all of those rounds up into smaller, consistent groups makes it a lot easier for me to keep track of how many more rounds I have to go on the second sock before I start the heel. I basically do the same thing on the leg of the sock, starting at the end of the heel. Hope this helps.