If you or your spouse happen to be in a position to offer something for a barter, this can be a great way to save money for a wedding.  For example, my husband owns a webdevelopment company, so he created a new website for our DJ in exchange for free service.

Another example would be if you get “freebies” at your job–for example my sister in-law works at the Apple Store and frequently wins really cool Apple or other store gifts.  This would be something that you could offer to your vendors in exchange for a discount or (where applicable) free service.

Remember, don’t be afraid to negotiate.  At the end of the day your vendors are business people and they want to earn your business.