Give your reclaimed boxes and bags a sturdier grip by adding wire handles. Use...

https://lima-wiki.win/index.php/Will_Wire_Handles_Hold_12-15_Kg_for_Garage_Shelves_and_Hardware_Jars%3F

Give your reclaimed boxes and bags a sturdier grip by adding wire handles. Use 2-3 mm galvanized wire for strength and durability. Drill 3-3.5 mm holes to thread the wire through easily