Transplanting a Seattleite

Great list! Agreed about Duplos being useless. If you don't mind additions, a couple other toys that have been great for the mouthing stage at our house:

Winkel, by Manhattan Toy (aka the thing that looks like an atom). Best chew-toy we've had. A baby can grab it anywhere and shove it into their mouth.

Taggies blanket, also great when they're at the stage where just holding stuff and sticking it in the mouth is fascinating.

And for the starting-to-walk stage, we had a traditional push toy for Nick, but frankly a cardboard box (like the small size from U-Haul) was *way* better.