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

https://daisydustmaid.com/what-comfort-radius-fits-average-hands-for-a-wire-handle/

Give your reclaimed boxes and gift bags a sturdy upgrade by adding wire handles. Use 2-3 mm galvanized wire for strength, threading it through 3-3.5 mm holes that you can easily punch or drill