Whether you're running, biking, hiking, or going for a brisk walk, nothing's more annoying (or potentially dangerous) than having your shoelaces come undone. You could go for the old standby — the double knot — but it's a pain to untie once you're ready to slip off your sneaks. I learned this trick from a running buddy and haven't looked back since. Check out this step-by-step guide to tying the perfect knot. If you remember how to tie your sneakers like you learned in kindergarten — with the two bunny ears — you're one step ahead.