Wrap-It Storage 13 in. Heavy-Duty Storage Strap - Multi-Purpose Hook and Loop Extension Cord Strap with Grommet in Black (6-Pack) A106-30BX - The Home Depot
Extension cord hook/loop Extension Cord Accessories at Lowes.com
S-hooks
Safety Hook - CableSafe
Bungee Cord with S Hooks - 30' | Vibe Kayaks
Yellow Cord Hangers for Cord Elevation - Quick Hooks