With every new season comes the instinctual urge to purge our medicine cabinets in the name of a fresh start, but the transition from summer into fall is a little different. As the weather changes, our skin tends to pick up some unsavory habits of its own (breakouts become irritation sunburn becomes dullness, oily becomes dry), so replacing your summer skin go-tos with seasonally-appropriate picks is the best thing you can do for yourself before the September equinox.