It's great to finish stuff, but Ann wants everyone to know that it's best, for now, to concentrate on socks. So by all means finish that sweater that's languishing and put it aside, if that takes a load off your mind, but if you want to be ready for the next A4A event, it's almost certainly going to be socks. (If you, like me, have half-finished socks around to address, you're all set!)
Target sizes are to fit kids from age 7 up through women's sizes; this means a foot length of anywhere from about 6.5 inches to 10 inches (16.5 to 25 cm) will be useful (that's measuring from back of heel to tip of toe).
I'm using worsted weight for some, sock yarn held double for others. They'll be warm! And they're great car knitting if you're traveling this summer.