Wall Street is feeling jolly as the key retail season gets underway. Stocks rallied for a fifth day, with major indices up 1-1/3 percent in a holiday-shortened trading session. That helped blue chips end a four-week losing streak and the Nasdaq stop six-weeks of declines. Black Friday is up and running. The unofficial start of the holiday shopping season began with long lines and crowded stores and consumers up early looking for the best deals.