Give your reclaimed boxes and bags a sturdy makeover by adding wire handles....

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

Give your reclaimed boxes and bags a sturdy makeover by adding wire handles. Use 2-3 mm galvanized wire for strength and drill 3-3.5 mm holes to fit the handles perfectly