Quick and easy for the kitchen.
I whipped these up to put in a basket we were donating to a women's shelter. They only took about an hour each, and that's with my slow knitting.
It's not much of a how-to, but here it is.
Check the label on your yarn and use the size of needles it tells you to.
Cast on 27 stitches.
Knit every row until your work is a square, or until you reach the desired length.
Cast off all stitches. Weave in loose ends.
Again, not much of a how-to, but now you know!