This one might be the easiest party to plan, but you'll probably end up having the most fun. You'll need all the basic b*tch essentials: a photo wall decorated with flowers, confetti, pizza, wine, avocado toast, etc. Everyone should embrace wearing leggings and an oversized sweater. Also, everyone should post a "Cheers!" boomerang to their Instagram story. Honestly, "basic" things are the best.