For your sister Carrie, the unrepentant shoe fetishist:
Simple LAYabout Boot ($70)
Does your size-nine sister attend family events with her feet dressed to the nines? When she’s not sporting the season’s latest wallet-busting, blister-inducing heels, she can relax around her pad — err, shoe showroom — in these quirky vegan bootie slippers that are crafted from hemp and comfy organic cotton fleece. The webbing binding is made from recycled soda bottle PET, and the buttons are made from biodegradable carved coconut.