When planning your wedding, there are things that are nice to know, like that mermaid silhouettes are all the rage or that purple is making a comeback.

Then, there are things you need to know — advice so essential that any bride who’s lucky enough to hear it thinks, “I’m so glad someone told me that!”

If you’re wondering whether there’s something you may have missed or even if you’ve got everything under control, check out our indispensable planning secrets.

1. Guests Come First
Get a grip on the approximate number of guests you’ll invite before settling on a venue. This will ensure there’s ample space for your crew. As a rule of thumb, allow for 25 to 30 square feet per guest. That may seem like a lot, but it’s not if you count the space you’ll need for the tables, bustling waiters, the band, and the dance floor.

2. Investigate Wedding Blackout Dates
Know ahead of time if your wedding date falls on the same day as a trade conference, charity walk, or other local event that could affect traffic and hotel room availability.

3. Listen to Mother Nature
Heed the weather and other potential annoyances. Guests have been known to skip out early from hotter-than-hot summer tent weddings and improperly heated winter loft receptions. Bugs gnats, deerflies, and no-see-ums also swarm in certain areas during certain seasons. Consider renting pest control tanks to alleviate the problem or including bug repellent in guests’ gift bags. And if you want a sunset ceremony, make sure you know when to say your vows by checking SunriseSunset.com.

4. Check Your Credit
Take advantage of the high cost of weddings and sign up for a credit card with a rewards program. Whether it gives you airline miles or great shopping deals, consolidating all wedding-related purchases to this card will help you accumulate thousands of rewards points which could be used for your honeymoon.

5. Pay It Forward
Let one vendor lead you to another. Your wedding photographer can tell you which florist’s blooms really pop, and your reception manager should know which band packs the dance floor.Let one vendor lead you to another. Your photographer can tell you which florist’s blooms really pop, and your reception manager should know which band packs the dance floor.

6. Lighten Your List
The easiest way to trim your wedding budget? Cut your guest list. Remember, half of your wedding expenses go to wining and dining your guests. If it’s costing you $100 per person, eliminating one table of 10 can save you $1,000.

7. Ask and You Might Receive
Request an extra hour for cocktails or for your band to throw in that Frank Sinatra sound-alike before you sign on the dotted line. Most vendors would rather secure the reservation than nickel-and-dime you early on and turn you off. Later on, though, they may have less of a motive to meet you halfway.

8. Make a Meal Plan
Another unforeseen expense? Feeding your wedding day crew. Before you sign the contracts, make sure you’re not required to serve the same meal to your vendors that guests will receive. Otherwise, you could be paying for 20 additional lobster tails. Choose a less expensive but equally hearty meal for them instead. You will have to let your wedding caterer know a couple of days before the wedding exactly how many vendors you need to feed don’t forget photography assistants and band roadies and what you want them to serve.

9. Get Organizationally Focused
In a three-ring binder, compile all your correspondences with vendors, notes you make during meetings, and photos or tear sheets from magazines you want vendors to see. Set up a special email address dedicated to your wedding, and store important vendor numbers in your cell phone.

10. Tend to Your Bar
Typically, you need one bartender per 50 guests to keep the line at a minimum. But if you’re serving a signature cocktail that cannot be made ahead of time or in large quantities, consider adding an extra server designated to this task.

Useful links:
Wedding Music Italy
Wedding Bands Italy