Whoops! I just (accidentally) screwed Jeff Bezos out of $130.

• I wanted to subscribe to The Washington Post, owned by Jeff Bezos, for $12 every 4 weeks.
• Instead, the Post let me pay $2 instead.
• I'll take it! But the Post's discount underscores how difficult the subscription business can be.

I didn't set out to take Jeff Bezos's money. And I definitely wasn't trying to get one over on The Washington Post.