A slippery slope indeed. I am trying to get down to three. I find sending them off to family members and old friends to keep as "theirs" helps the habit. Also, build some shelves in your garage or basement and take a few apart to store on the TOP shelf where they are hidden. The problem is there will always be a bike you wanted back in middle school or high school that pops up on craigslist or ebay for a price to good to pass up. Good luck and may i recomend that you could use a mtn bike and a mustache-bar bike in you collection.