My diaper bags

We've used only bags we already owned for hauling around diapers and other essentials.

Bag #1 - Oilcloth bag bought in Amsterdam in 2003
Kitsch Kitchen Messenger Bag in Patchwork

Tote from LoveShine that was a gift from a friend (different pattern)

Eddie Bauer Backpack - purchased on sale (for $20) years ago, which I use mostly for travel

We have also used other various tote bags when needed. We never did the $70+ mothership route in this regard.