Transform your old boxes and bags into sturdy storage by adding wire handles....

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

Transform your old boxes and bags into sturdy storage by adding wire handles. Use 2-3 mm galvanized wire for strength and drill 3-3.5 mm holes for a snug fit