Annika is still in her "dress/skirt/never-ever-jeans" phase, so that means that she wears thin leggings or tights every day. In this weather her legs get pretty cold, but it's too much of a hassle (and sometimes too hot) to put on snow pants every time we go out. So I knit her these leg warmers as a quick and easy way help keep her a little bit warmer. She picked the color - I call it "Snuggie blue", since it matches the color of my Snuggie exactly. ;)
If you're interested, you can find the pattern here. I made the 3-5 year old size, but made them a little longer than the pattern said. They're a little loose on her, so they'll fit for a while.