Better yet, buy an extra smoke detector and just leave it on your computer desk, or anywhere you have a lot of electronic equipment. They're only $7 at Wal-mart.
Emma and Amanda's situation, which apparently was a very very small fire, points out how deadly smoke can be.
As my screen name indicates, I work in TV. We had a 3 alarm house fire this morning in our area on my show, destroyed two houses, and damaged a third. Everyone got out because smoke detectors woke them up.