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

https://spark-wiki.win/index.php/How_Do_I_Mark_Handle_Holes_So_Both_Sides_Match_Plus_or_Minus_1_mm%3F

Give your reclaimed boxes and bags a sturdy upgrade by adding wire handles. Use 2-3 mm galvanized wire for strength and drill 3-3.5 mm holes for a snug fit