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Sure, you can transfer your favorite bottle into a collapsible reservoir—or you can skip that step and just buy some Bandit. Available in six varietals (like pinot grigio and merlot), this California wine-in-a-box actually tastes good (the reds are better than the whites), according to our staff wine snobs. The plastic screw-on cap is spillproof, and when empty, the box collapses flat and weighs next to nothing. $8; 2 lbs. 3 oz.; banditwines.com