I used to clean buildings for landlords when their tenants split when I was like 11 or 12. I found the "Brown Bomber" album while cleaning and took it home and was amazed.
I took my pay from that job and bought a bunch more of their albums. Know I listen to Zep tunes with my kids.
My dad was the reason for me making the trip to get the album. He guaranteed I would love it. After that I pretty much trusted his word about music.