If the onset of winter causes your mood to drop along with the temperature, you’re not alone (even if you live alone). Seasonal affective disorder — best known by the appropriate acronym S.A.D. — afflicts roughly 10 million Americans.
If you’re a homeowner, you have tons of options to winterize your abode. Install storm doors, upgrade your heating system, build walls or take them down! As a renter, your options are a bit more limited.