1990s quintessential?

Searching for "not very well-known alternative rock songs that, even if you had never heard them before, you would know they were from the 1990s."  This has led to:

and

The Rentals are coming to Portland in May, and one of my friends is trying to convince me to go.  Maybe I'll go.  It's on Mothers Day, though, so...

The 12 Rods song was on the soundtrack to Orange County, which has my favorite Jack Black role in it. Now, the song was on Separation Anxieties, which came out in 2000, but I think it really captures the previous decade, and I'm guessing they wrote it and started playing it in the 90s.

What are some obscure but quintessential 1990s songs/bands I should track down?