(Image credit: Amazon / edited by Gemini) Memorial Day weekend is almost here — the unofficial start to summer and the perfect excuse to soak up time outdoors with barbecues, pool parties and backyard celebrations. If you’re looking to make the most of outdoor living season, now is the perfect time to give your backyard a refresh. Luckily, retailers like Walmart, Amazon, Lowe's and more are hosting early Memorial Day sales with everything you need to transform your outdoor spaces. From must-have gardening tools to stylish patio furniture, you'll find the perfect picks that match your individual style, needs and setup.…