Give your reclaimed boxes and bags a sturdy upgrade with simple wire handles....
https://research-wiki.win/index.php/What_Is_a_Good_Test_Load_for_a_New_Wire-Handled_Box_Before_I_Trust_It%3F
Give your reclaimed boxes and bags a sturdy upgrade with simple wire handles. Use 2-3 mm galvanized wire for lasting strength that won’t rust. Drill 3-3.5 mm holes to thread the wire easily without splitting the material