Shopping is the grownup woman's super power. Once we get going — spurred on by the adrenaline rush of sales alerts — there's nothing we can't buy. Unfortunately, in our zest to spend, we sometimes forget to balance love at first sight with our actual lifestyle, body or budget. One impulsive Sunday my online cart included a tie-dye cashmere sweater (that resembled a bad laundry accident) and stiletto mules marked down 40 percent that spelled disaster for an accident-prone woman with osteoporosis like me. Of course, we try to be mindfully frugal, but it's so easy to get carried away. Here are 11 new classics you won't return.