Eric Burdon and the Animals, Fillmore Auditorium, 1967. Saw them about ten days after Monterey Pop. They played between Steve Miller and Chuck Berry.
The Avengers, Winterland, 1978. Along with The Nuns, they opened for the Sex Pistols. I've told the story many times, how my daughter was born the next day, and then a few decades later, she told me she'd met this woman I might have heard of named Penelope. I said you tell your new friend I saw her in concert the day before you were born.
Apollonia 6, 1984? Hell, I don't remember what year it was. We saw Prince every year back in those days, and I'm guessing Apollonia turned up in '84, since that was the year of Purple Rain, which she appeared in.
Bangs, Fillmore Auditorium, 2002. Bangs were an early riot grrrl band that didn't consider themselves to be a riot grrrl band, which is actually kind of cool. I saw them open for Sleater-Kinney, the ultimate spawn of riot grrrl.