Time to start stockpiling bulbs!
For what good it will do (probably none), there are two petitions currently running on the No. 10 petitions website:
http://petitions.pm.gov.uk/savelightbulb/http://petitions.pm.gov.uk/incandescent/They're only open to U.K. citizens and residents to sign, I'm afraid, but I'm willing to stand up and be counted.
