Pop goes the weasel this holiday weekend. HELP Feed Bag What: Feed a child for one full school year through United Nations World Food Programme with the purchase of this tote. Why: We are the world. Where: Online at amazon.com. SHOP Satine Sale What: Get 50 percent off everything from flirty frocks to fierce flats from the sleek boutique. Why: Time to set sale. Where: Online at satineboutique.com. EAT Clairesquares What: The latest and greatest in the treat world consists of a shortbread base covered in caramel and topped off with Belgian chocolate. Why: Gives new meaning to square meal. Where: Online at clairesquares.com. SCORE Portero.com What: The fancy-pants auction site has launched an accessories section, chock full of Birkins and bling. Why: You gotta meet that Black Card minimum. Where: Online at portero.com. USE Oovoo What: Chat via video conference with up to six peeps anywhere in the world for free via this site. Why: Talk is cheap. Where: Online at oovoo.com.