If you don’t have one of those fancy vacuums with the automatic start outlet, the iVac Switch is worth a look. Your vacuum and the tool it’s connected to plug into the iVac, a small yellow box that’s slightly larger than a four-gang outlet. When you turn on the tool, the vacuum powers up automatically and remains on for six seconds after the tool turns off, so dust and debris clear from the hose. If the combined draw of the tool and the vacuum is too high for a single circuit, the iVac can be used to run them off separate circuits while maintaining the same functionality. ¦ Price: $49. 888-273-5742. ivacswitch.com.