Bring Your Accessories
While most salons will have shoes and a slip on hand for you to try on with your gown, you should still come prepared with a nude bra and underwear for the fittings. Also bring shoes with a similar height as what you plan on wearing at the wedding, so you can see how the dress falls with your heels. And try on your other day-of accessories (if you have them), like your veil or cover-up, to get an idea of how your whole look will come together.
Trust Your Instincts
If you have to be reassured that the dress looks great on you, it's probably not “the one." If you can't see yourself walking down the aisle in it, move on. When you find the right dress, you'll know—you won't want to put on anything else. Have some tissues handy; it will be an emotional moment!