Lessons:
1. Get a better basket (this one was lying around the house)
2. MORE BUNGEE CORDS
3. Still need to figure out how to bring bread back without smashing it... gets smooshed in the backpack, gets smooshed when strapped into a basket.
4. Full week of groceries for the family would be an extreme challenge, even with a trailer, due to weight. Probably requires e-bike with trailer. Or daily trips to the store? Dunno.