[russellbeattie]

Yep, same here. The only time I use this bit of knowledge nowadays is in the console. If I see a tag has an ID, I save myself a few characters by just referring to it as a variable since I know it's already there anyways.

IDs were the only way to get a reference to an element early on if I'm remembering correctly. Or maybe the DOM API just wasn't well known. All the examples and docs just used IDs, that I can remember for sure.