Mommy guilt isn’t limited to children. Fido is family, too—so when you’re  choosing what your tail-wagging baby will eat, it can feel pretty awful lugging home a big bag of kibble you know isn’t the best. Sadly, healthy, organic food options, for both people and pets, bump up numbers on the grocery bill, making it more likely you’ll buy generic than GMO free. But many pet owners are shuffling budgets to make room for better-quality pet foods, with sales of organic varieties increasing in the U.S., despite the down economy. According to…