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

https://packagingrevolution.net/add-wire-handles-to-boxes-and-bags/

Give your reclaimed boxes and bags a serious upgrade by adding sturdy wire handles. I use 2-3 mm galvanized wire—it’s strong and resists rust. Drill clean 3-3.5 mm holes to thread the wire easily without damaging the material