Give your reclaimed boxes and bags a simple upgrade by adding wire handles....

https://aged-wiki.win/index.php/How_Do_I_Reinforce_Cardboard_Before_Drilling_Holes_for_Handles%3F

Give your reclaimed boxes and bags a simple upgrade by adding wire handles. Using 2-3 mm galvanized wire, you can create sturdy grips that hold up to daily use. Drill 3-3.5 mm holes for easy threading and secure attachment