(Image credit: Wayfair / edited by Gemini) Memorial Day is just a few weeks away! In celebration of the pre-summer holiday, Wayfair is hosting an epic sale with up to 70% off everything you need to freshen up your backyard and patio for pool parties, barbecues and outdoor gatherings. Whether you’re looking for new lounge chairs for the pool, string lights to add ambiance to your patio at night, or a dining table for enjoying meals outdoors, there are plenty of great deals to shop right now. Follow Tom's Guide on Google News and add us as a preferred source to get our up-to-date news, analysis, and reviews in your feeds. Get instant access to breaking news, the hottest reviews, great deals and helpful tips. Olivia is a Deals Writer at Tom’s Guide. She loves all things lifestyle, shopping, and sourcing the best deals from some of the top brands, retailers, and websites around.…