This talk discusses major findings from three in-depth residential occupant studies that were conducted over the past two years. The objective of the studies was to shed light on the complexities of occupant behavior by performing long-term monitoring with interviews and surveys. The first study looked at the effect of billing schemes on occupant control of indoor temperature. The second study examined window shade use and found patterns are significantly different than in office buildings, but that occupants seldom move their shades. The third study examined the comfort and purchase decisions of modern, highly-glazed apartment buildings.