In October I cast on for a shawl-wrap using 7 balls of sock yarn, many of which are super old. (One is maybe 15 years old.) It's a delight to knit and I'm really enjoying it to the point I suspect I will make a second one, despite the fact it will take me 6 months to make this one (if I knit regularly.)

But I stopped knitting socks for myself a few years ago and love sock yarn so I have two bins of it just sitting. (I can only make one sockhead hat a decade without stabbing something with a knitting needle. ;-) )

But if I make two wraps, then most of my sock yarn will be used up! And I will have to buy more!