Consider opting for an off day or season.
If you're willing to compromise on your choice of a vendor, then odds are you'd be willing to compromise on your choice of time of year. If seasonality does not factor heavily in your dream wedding, then consider having your wedding in a less common month, like the wintertime. I hate being cold - with a passion that burns like a million suns! So I don't book weddings in the winter. However, I've photographed winter weddings because 1. The client and I have just clicked, and I can't imagine saying no to them, and 2. Because during the winter, I get a creative itch, and I need to photograph a wedding or two to itch it. If seasonality does factor into your planning, then consider having your wedding on a weekday. Many venues offer a discount to couples who choose to have their wedding on a weekday, making this a great way to cut costs. P.s. I don't offer discounts for weekday or off-season weddings.