Serving wine at a holiday party can invite errors. The corkscrew gets lost. Corks get pushed into bottles because someone doesn’t know how to use the corkscrew. Those cute buckets of ice aren’t so ...

Is $10 the sweet spot for wine-sipping consumers willing to go beyond $5 a bottle but not too far into double digits? Walmart is banking on it: The Bentonville, Ark.-based retailer is expanding its ...