Give your reclaimed boxes and bags a sturdy upgrade with simple wire handles....

https://www.red-bookmarks.win/give-your-reclaimed-boxes-and-bags-a-sturdy-upgrade-by-adding-wire-handles-use-1

Give your reclaimed boxes and bags a sturdy upgrade with simple wire handles. Use 2-3 mm galvanized wire for strength and drill 3-3.5 mm holes to thread it through easily