Ruffwear Slackline Leash - $39.95

You could use your old climbing rope as a dog leash, but you have to tie it in place, your makeshift loop handle isn't very comfortable to hold, and you can't adjust the length. Make your life easier with the Ruffwear Slackline Leash. This leash features a quick-clip collar attachment you can clip and unclip with one hand, a padded handle to take the bite out of every tug from Fido, and an adjustable length. Eventually you're going to need to leave your pooch outside while you hit the store too, so Ruffwear added a quick-release buckle to the leash handle so you can attach the Slackline to a post, fence, or tree easily. - $39.95