Losnana, I think that would work but would be pretty labor-intensive. I find that switching to a smaller size needle for heavy wear areas like heels and toes, or even the whole foot, helps prolong sock life. I have "sockiverous" toes and my husband has "sockiverous" heels, and use only wool blended with synthetic or wool/cotton/and/or/bamboo blended with synthetic for socks. These blends also help the socks last longer.
Actually, it's a little frustrating that our socks last so long!
My sock yarn stash is building and building, but our sock drawers are full to overflowing! He and I have picked out these great colors and patterns we love, but have no room for more socks!