Scarf: My favorite quick scarf is the Scrunchable Scarf
Blanket: To make a simple blanket, just cast on 200 stitches and knit every row. Change colors as you run out of each yarn. (It will take several skeins of yarn to make a blanket.)
Hat: Bev's Really Basic Stretchy Hat
is very easy to make, and comes in 7 sizes (infant to adult)
Slippers: Good, warm slipper that teaches sock construction. Tropical Punch Slipper Socks
Mittens/Gloves: Simple Mittens from Coats & Clark website.
Mittens for All
Face Warmers: I've made a couple of these Helmetliners
I found the photos online for some of the projects.
I made some of them myself.