Rake and water
-- Keep raking. Leaves shouldn't collect for more than a few days on lawns because they'll suffocate grass. Don't worry, though, about leaves around shrubs and perennials; they'll provide protection.
-- Try a compost pit. If you have room, this is a good way to deal with all those fallen leaves. Just dig a big hole in an out-of-the-way place, such as behind a fence or some large shrubs. Fill with all the leaves you've been collecting, then top with the displaced soil when you're done.
-- Water. If the fall has been especially dry, continue to water, paying special attention to new plantings. Even if there has been a light frost, plants still need adequate moisture. Otherwise, plants might become dehydrated and stressed by winter -- and more likely to die out by spring.