Winter may be here, but you can definitely still channel Summer with a party! You'll need colourful decorations like balloons, photo props (sunglasses, sunblock, lifeguard whistle), and maybe even a kiddie pool (fill it with ice and use it as a drink cooler!). Serve Summer cocktails like piña coladas or sangria and Summer food like ice cream or hamburgers. To top it all off, use beach towels and chairs instead of the couch for relaxing, and pass out leis as guests arrive. Of course, Summer attire is a must so make sure to have space set aside for Winter coats for those throwing parties in colder climates.