What do you do with your shoelaces?

I use mine. I train with regular laces...I just put the yankz! on for races (and the last few runs I do before the race).

I only have the speed laces/yankz on my racing shoes.  I do not use them day to day on my training shoes.

Seems kind of silly to me to spend the money on training shoes when I'm not really in such a hurry that I can't tie my shoes.

Decorative Macreme? 
Cat's Cradle?

I do a lot of outdoors stuff, and shoelaces are handy for camping etc. (even if they're not in shoes). 

I've got one pair of laces looped around the handle of my workout bag (going on 2 years now) just in case I break a lace, lose a drawstring, etc. 

The shoe company won't want them (would you buy a pair of shoes if they had "used" laces in them?) and it would cost a fortune to ship them to where they could re-insert them in new shoes anyways. 

Donate them to a kid's afterschool program, homeless shelter, cub-scout or brownie group, etc. 

It's not a huge expense, considering I get mine at Walmart for $0.49 a set. Look in the craft department, in with all the sewing supplies. They have the identical elastic sholaces with the bungee lock mehcanism as some of the pairs I've seen in running specialty shops (not like the Speed Laces). I've only seen them in white, grey, navy and red, but they work as well as some pairs I've spent $10 on.

Ohhhh good tip there Sty!  Will be checking that out.