We all need a mental refresh after “the year that shall not be named,”and now is a perfect time to spruce up your surroundings with a few low- and no-cost tips that are the go-to difference makers in a designer’s toolbox. A truly uplifting home environment stems from a unique combination of intimate treasures-the memories, colors and styles that inspire you. Most of us already have all the ingredients we need to create a personalized nook here or curated collection there. Here are a few ideas to get you started.