Channel all that energy into completing these 15 things the night before your wedding, and you'll give yourself peace of mind and create a good foundation for the big day itself.

• Eat a Healthy Meal

Though the greasy pizza and the bag of Cool Ranch Doritos might be screaming your name, stick to the fresh fruit and the whole grains. They won't have you waking up with a food hangover like a Big Mac and a side of fries will on your wedding day.

• Pack a Bag or Clutch of Personal Items

Put together your reception clutch and your post-reception bag, and hand it off to your wedding point person (whether that's your wedding planner, professional bridesmaid, or trusty uncle), who can ensure it's waiting for you in the bridal suite or your hotel room.

• Drink a Lot of Water

Keep a cold glass of water nearby and make sure you spend some quality time with it. This will help you avoid any dehydration that stress and running around can cause.

• Get a Good Night's Sleep

Or at least try to tuck yourself underneath those covers at a decent hour.

• Turn Your Phone on Silent

Say goodbye to checking Facebook and answering frantic text messages. Turn your chunky device on silent or hand it over to your maid of honor.

• Put Any Bags You Need in the Car

Pack the car with all the items you'll need for your wedding day so that you can wake up in the morning and not have to worry about doing any heavy lifting before getting out the door.

• Make Sure You Have Cash on Hand

Have a couple of £20 bills nearby in case you need to tip vendors or there are any last-minute emergencies.

• Gather a Survival Kit

Toss a bunch of must-have items into a small tote bag in case anyone needs them. Grab a handful of Band-Aids, safety pins, packets of Advil, and, of course, hair-ties.

• Write a Love Note to Your Partner

Something short and sweet. Reminding the person who will be waiting for you in a freshly cleaned outfit that they are the love of your entire life.

• Grab a Pair of Flip-Flops or Sneakers

Keep these close by. You'll want to change into them throughout your wedding day—whether after the morning photos are taken or in the middle of the reception. Your feet are going to need a time-out before you do.

• Assign Someone to Be Your Morning-After Person

This person's role will be to collect all the gifts at the end of the wedding and do one final sweep of the venue when the party is over to make sure you didn't leave anything behind.

• Say a Big "Thank-You"

Before the wedding-day chaos kicks in, be sure to thank people in advance for sticking by your side through this adventure. Give an extra hug to your bridesmaids and pop a kiss on the cheeks of your family members.

• Practice Deep Yoga-Like Breaths

End the day before your wedding with five minutes of meditation and deep breaths. This will help calm you down before you hop into bed.

• Keep Up with Your Nightly Beauty Rituals

Lather on the moisturizer, apply a face mask, stick on the whitening strips—whatever fits into your pre-wedding beauty routine. For a face moisturizer that offers optimal hydration, try Augustinus Bader's The Rich Cream. It's deeply nourishing and vegan-friendly. Plus, it protects skin from oxidative stress.

• Get in One Last Kiss

Whether you've chosen to embrace the tradition of sleeping separately and not seeing one another until the aisle or first look, or you're heading to sleep together in anticipation of the big day, take a moment to take it all in and enjoy your last unmarried smooch session.