I recycle my mono, but I also "recycle" my braid by using it on two reels before I get rid of it.
I'll take one baitcaster, prespooled with mono, tie the "used" braid on to that, and fill the spool the rest of the way with the old braid. The old/used braid goes on the spool first, and the perfectly good, unused portion of braid will be at the top of the spool.