Bunting makes a party, in my opinion, and making bunting couldn't be easier. Park yourself in front of the television with a bunch of printed union jack flags or even just red, white and blue construction paper. Cut triangles and glue them to string with a glue gun or stick. Voila, bunting to make any party festive.

It's probably too late to order union jack cookies from that yummy bakery you love, but it's not too late to walk into World Market and buy up a stash of British biscuits, or as we call them, cookies.

Balloons and flowers saved every last-minute party, so stock up on red, white, blue or gold balloons. Stop by Trader Joe's on your lunch hour tomorrow and see if you can find some cheap-ish pretty flowers to spruce the place up. Meghan is rumored to love peonies and garden roses, so a sprinkle of either of those will help your theme.

A quick internet search nets you more than enough royal wedding tidbits that you can easily make into a trivia game with very little effort. Spend your lunch hour tomorrow compiling trivia questions printed on individual sheets for each guest, and make sure you keep a copy of the answers handy, just in case there are disputes!

Since the royal wedding starts so darn early for us fans in the United States, it's hard to imagine serving much more than tea or coffee. But that doesn't mean you can't make the tea selections more fancy or British than usual. Visit a local tea shop and for their best royal wedding recommendation to serve your friends.

While you're waiting to see whether Posh Spice shows up or not, have your guests decorate tea cups or coffee mugs as souvenirs of the British and American couple. Just pop into a craft store and for an array of porcelain paint markers and stop by Target or Walmart for plain cups. Bake them in the oven to set the paint and they'll be finished before Harry and Meghan say 'I do.'

Royal wedding printable paper suite ($19, Etsy)

It's too late to order any fancy invites to send your friends, but it's not too late to snap up this printable set that includes table name cards, a word search, a trivia game and even a drinking game template if you're so inclined.

I don't know many people who will want to get dressed in their royal wedding best at zero-dark-thirty in the morning, but having a fancy pajama or fancy robe contest adds a little spice to the morning and keeps your guests from arriving in a shredded t-shirt from their college days.

So long as you get a good night sleep the night before and aren't too tired to measure properly, scones are an easy and fast British food to whip up for a watch party. They're the perfect plain base to load up with lots of berries, clotted or fresh whipped cream, and fancy jam, all of which you can easily pick up today or tomorrow. Bookmark this scone recipe from BBC's Good Eats so you know you're getting a properly British version.

The last thing you want to do is miss any part of the festivities because you aren't sure when it's starting. If you're too occupied making tea and decorating mugs, set a few timers on your phone so you make sure you don't miss the whole thing. Guests will start arriving by 9:30 a.m. London time, or 4:30 a.m. Eastern Time, and are expected to be seated and ready for the arrival of the bride at noon sharp in London, or 7 a.m. Eastern Time. That's a must-see moment!