"may take several trips ... less in a backpack or on my bike" EBikes help here. I have a 'ready-bike' for these sorts of things, electric (euro-legal pedelec)

"may take several trips ... less in a backpack or on my bike" EBikes help here. I have a 'ready-bike' for these sorts of things, electric (euro-legal pedelec) and a trailer hooked up to it. The trailer will take a week of groceries, and the electric means I can dash out without worrying about the added weight if it's just a tin of beans. So, a lot of errands work for this. Hooking up the trailer is a bit of a chore, so keeping it on is key (for me) to making this the 'go-to' vehicle. Trailers are somewhat pricey new, but show up on used/swap sites for cheap; and as a bonus it seems as if people reckon you have a child on board (which I sometimes do, that's what it was originally purchased for) and give you a bit more space.