Smartphones, tablets, laptops, and computers dominate our lives. Could you use a "digital detox"? A digital detox is when you switch it all off - eliminate texting, posting, chatting, and snapping for an uninterrupted break. Sound good? If so, try it for a few hours at first. Work your way up to a day or two. Begin by sharing your plan with others. Pick a realistic time like a weekend, and prepare to feel anxious, fearful, guilty, or a little selfish. It's part of the experience and it might…