Best Ways to Save $1,000 for Unexpected Expenses

Working on story for TheStreet on the best ways to save $1,000 for unexpected expenses, like a broken water heater, car trouble, or legal trouble (for example). What are the most creative and effective ways to save $1,000 fairly quickly? And why? How long should this process take? All comments and personal stories welcome. Requirements: Budget experts, personal finance experts, money managers, expert savers, actual rainy day savers.