DIY: Extension cord holder

Folding Extension Cord Organizer! : 8 Steps (with Pictures) - Instructables

Simply Easy DIY: DIY Extension Cord Holder

8 Easy Ways to Organize Your Cords - Instructables

Climbing Rope Storage Hook by Simon Oliver

The simplest extension cord storage and cord organizer idea to save space and time — IsGood Woodworks

The RunnerDuck Extension Cord Holder, step by step instructions.

DIY Cord Organizers Get Cables Under Control - DIY Candy

Handy Extension Cord Organizer: 9-Step Complete Build - DIY projects for everyone!

Extension Cord Reel : 4 Steps (with Pictures) - Instructables