Pannier bags often crush fragile items like lettuce or squish loaves of bread. Often they are too narrow for really mundane items like … watermelons or pumpkins. Pannier bags are of ten pretty expensive, and they are a chore to wash. A bucket is easy to clean, and if you haul chemicals (like petrol) a HDPE bucket isn’t bothered by petrol or paint thinner, motor oil, or just soil, sand or mud from your gardening project.

Wheel Revolution: Bike Bucket DIY.