WHAT A DIFFERENCE 30 YEARS MAKES:   1970: Long hair   2000: Longing for hair   1970: The perfect high   2000: The perfect high yield mutual fund   1970: KEG   2000: EKG   1970: Acid rock   2000: Acid reflux   1970: Moving to Calif. because it's cool   2000: Moving to Calif. because it's warm   1970: Growing pot   2000: Growing pot belly   1970: Watching John Glenn's historic flight with your parents   2000: Watching John Glenn's historic flight with your kids   1970: Trying to look like Marlon Brando or Liz Taylor   2000: Trying NOT to look like Marlon Brando or Liz Taylor   1970: Seeds and stems   2000: Roughage   1970: Popping pills, smoking joints   2000: Popping joints   1970: Our President's struggle with Fidel   2000: Our President's struggle with fidelity   1970: Paar   2000: AARP   1970: Killer weed   2000: Weedkiller   1970: Hoping for a BMW   2000: Hoping for a BM   1970: The Grateful Dead   2000: Dr. Kevorkian   1970: Getting out to a new, hip joint   2000: Receiving a new hip joint   1970: Rolling Stones   2000: Kidney Stones   1970: Being called into the principal's office   2000: Calling the principal's office   1970: Screw the system   2000: Upgrade the system   1970: Peace sign   2000: Mercedes logo   1970: Parents begging you to get your hair cut   2000: Children begging you to get their heads shaved   1970: Taking acid   2000: Taking antacid   1970: Passing the drivers test   2000: Passing the vision test   1970: Whatever   2000: Depends