If your old boyfriend's, husband's or son's socks are full of holes, don't throw them out.
When my families' white socks get holes in them or end up being strays, I use them to dust. I slip a sock over my hand and it is very easy to dust rungs of chairs, legs of tables and knick-knacks.
When my socks get holes in them, I turn them inside out and use them for dusting/cleaning rags.