Traditional, sock yarn mitered square blankets look amazing but they use a distressingly small amount of yarn. As I found to my cost when I made mine. I love it to pieces but it took the best part of two years (off and on) and my sock yarn leftover bag doubled in size while I was knitting it.
At some point I hit on the idea of holding yarn doubled for mitered squares though and I was gratified to see it eat through my stash with some rapidity
Make inroads into your stash. Each square of my monster mitered square blanket uses 50g sock yarn (2 x 25g balls). Enough to make the most robust stash quail.
You get to play with colour. Holding yarns double allows you to play with marled effects much more than you can with conventional squares.
It’s wonderfully squishy. Traditional sock yarn blankets are all well and good but at the end of the day they are just lightweight covers. A blanket made with yarn held double has a lot more weight behind it and is just the thing to have over your knees.
The basics of mitered square knitting have been convered on my blog before - here - but if you would like more detail in a easy to read, more condensed manner I have an ebook available at the link below.