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

https://evelynsexpertcolumns.brightsora.com/posts/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 and drill 3-3.5 mm holes for a snug fit