Space exploration promised us alien life, lucrative planetary mining, and fabulous lunar colonies. News flash, ladies and gents: Space is nearly empty. It's a sterile vacuum, filled mostly with the junk we put up there.
One of my timesaving habits is to save all of my magazines and junk mail for airplane trips. I walk on the plane with a very heavy bundle, but by the time the trip is over, it can all be thrown away.