Next time the plastic tip of your shoelace starts to break, don't rush out to by new laces. Instead, fix it at home with a candle.
If it's completely frayed, you'll want to start by using thread or dental floss to tighten up the end as we've discussed in a previous post. Once it's nice and tight, dip it into the melted wax of a recently-exinguished candle, and let the wax soak in for a few seconds before pulling it out to let it dry. It may take a few coats to get a solid tip, but once you're done, your laces should have some extra life.
11 Crazy Useful Things You can Do with a Candle [WonderHowTo]