Yes, I rarely buy only one item. If I order from Zulily I try to get multiple things...just like they hope customers will do. Ha! Also, put the one item in your cart that has the lowest shipping charge and make that purchase. Then everything after that is free shipping for that day or weekend depending on when you are buying. Then sit back and wait an eternity for your items to arrive.
BUT, I have gotten some really, really great things from Zulily and in my experience their customer service has been excellent. You just have to know what you're dealing with.