Buy Entrance Tickets in Advance
Peak-season travel means big lines and long wait times at theme-park gates. To avoid the never-ending queues, buy your amusement-park tickets in advance. Not only will this save you time, but you can often catch early-bird or online-only deals on admission. For instance, at Six Flags theme parks, you can save up to $25 per ticket if you purchase and print your tickets online. You can often snag deals on parking, dining, and group sales as well.
The same rule applies to national parks. When possible, make advance reservations online, especially for popular spots like the Pearl Harbor Memorial or lodging at big parks like Yosemite. If you're a frequent visitor, consider sidestepping the process altogether by purchasing an annual park pass in the spring.