Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: How to create a long leash for your dog?
Link together several leashes and attach to your dogs collar so that your dog has some range to wander
Attach a long extension cord to your dog's leash. Or, use a retractable leash with an extended length.