Don't Sneer at Cover Bands
Those of you who take your music seriously may never, ever consider employing a cover band for your wedding. But you should. Weddings are gatherings of your past, like family and high school reunions, as much as they're celebrations of your future. Having familiar songs on the soundtrack while you and your bride dance the night away can bring out the memories and help to unite a very eclectic guest list (give me a little old lady and a limbo stick, and I will show you a very happy crowd). Plus, good taste be damned, a wedding just isn't a wedding unless you get a little bit louder now with "Shout!"

Don't Sneer at DJs
"If I'm going to have all old songs playing," you might think to yourself, "why not save some cash and pay someone to spin records?" The logic makes sense--but unless your DJ is extremely creative and well established, he won't be able to bring the house down with the same energy as a live band. Plus, good bands who know weddings (see above) are fronted by engaging frontmen who keep the festivities on track between songs. DJ's can also serve this role, but sometimes they're less willing to do so.