Incandescent light bulbs become illegal.

http://www.usatoday.com/money/indust...ht-bulbs_N.htm

I now direct you to my topic I made many years ago, then reposted.

http://pokedream.com/forums/showthre...many+forumites

12 to post to the board that they will no longer post because they cannot handle the light bulb controversy

Seriously, this reminds me of when low-flow toilets were mandated.