I finished a pair of anklets last month and said I didn't care that one was an inch shorter than the other, since they were for me. I finished a pair of baby bootees and noticed I had made one two rows shorter in the instep than the other. No one will notice, I said. If there had been anyone around to hear me, I would have been subjected to the family's Test for Aliens - I was clearly not myself. (And no, I'm not explaining the test - everyone knows aliens monitor the internet.)
Yesterday I sat down and evened out the anklets, and re-knit the short bootee. Symmetry rules.
Anklets: leftover Berroco Sox, my standard anklet pattern
Bootees: leftover Knit Picks Stroll, Stay-on Booties - frankly the best pattern I know, since the garter stitch construction means they'll fit practically any baby foot out there.