• Do not install the switch right below the halogen spotlights, because when a lightbulb explodes at switch-on you don’t really want to be too close.

• Do not install halogen spotlights right over the bed, because once it’s covered with ultra-sharp microscopic glass shards you’re screwed.

• Do not turn on halogen spotlights at two in the morning, because it’s too late to run the vacuum cleaner.

All in all I’m not going to use up all my remaining lightbulbs, and I’m going to buy LED replacements for the last two — nevermind that they’re less bright.