Give your reclaimed boxes and bags a sturdy, comfy grip by adding wire handles....

https://www.stall-bookmarks.win/upgrade-your-tired-reclaimed-boxes-and-bags-with-sturdy-wire-handles-for-easy

Give your reclaimed boxes and bags a sturdy, comfy grip by adding wire handles. Use 2-3 mm galvanized wire—it’s strong and resists rust. Drill 3-3.5 mm holes near the edges for easy threading