Trade your manual toothbrush for this electric one and your dentist will faint from shock at your next cleaning. (Photo: Walmart) If you haven't jumped on the electric toothbrush train yet, there's no time like the present, especially since this highly rated Fairywill Electric Toothbrush is on sale for $20 (down from $70). It has a two-minute timer to ensure a thorough brushing, and it will give you a little nudge every 30 seconds as a reminder to switch over to another area in your mouth. In time, up to 99% of your plaque will be history. Use its five brushing modes to target different needs, whether you want to focus on whitening or go gently on sensitive gums. You'll also get a year's worth of brush heads, which can cost a pretty penny on their own. "Each time you brush it feels like you've just left the dentist," raved a smiling shopper . "My teeth are so clean after every brush, cleaner than I could ever get them with a manual brush, and after...