no. 5, soon you'll be able to buy samuel adams beer in a can. the company said it would never do it, but founder jim cook spent two years and a million dollars inventing a special can that he claims eliminates the metallic taste in most cans. no. 4, think twice before drinking caffeinated beverages while pregnant. it could increase the odds of having a low birth weight baby or extending pregnancy. doctors advise pregnant women not to exceed two cups of coffee a day or 200 milligrams of caffeine. no. 3, strapped for cash? the postal service is getting into the clothing business. it will release a line of apparel and accessories this fall called rain, heat and snow featuring apparel that uses technology to create smart apparel also known as wearable electronics. no. 2, traffic deaths in the u.s. surged last year. there were about 36,000 deadly crashes. that's up from nearly 35,000 in 2011. it's the first time in seven years traffic deaths have gone up. officials believe the improving economy and mild winters could be why more people are driving. n