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

https://iris-wiki.win/index.php/How_Do_I_Make_Two_Wire_Handles_the_Same_Shape_Every_Time%3F

Give your reclaimed boxes and bags a sturdy upgrade by adding wire handles. Using 2-3 mm galvanized wire, you can easily twist and shape strong grips that hold up over time. Punch 3-3