One for your keychain, so you don&rsquot leave home without it. The SplashFlash is a miniature LED torch that could literally save your life some time. Until then, it is bright for its size&mdashenough to check your compass or find your keys or matches in the dark, wear on a jacket or lanyard for hiking at night, waterproof and submers­ible in case you got caught camping in the rain or to replace your bicycle lamp. It even has an SOS blink mode in case you need to call for help quietly. (from $6.49, amazon.com)