With St. Patrick's Day celebrated next Tuesday, Americans will get into the swing of things by spending as much as $4.6 billion to celebrate the wearin' of the green.

That's the estimate from the National Retail Federation, which says that the average spent per consumer will be $36.52.

By far, the most popular way to commemorate St. Paddy's Day is at a restaurant or bar with 31 percent of survey respondents planning to do so on or about the 17th.

It's a day when everyone's Irish, apparently, since just over eight in ten said they'll wear something green and about a quarter plan on decorating their homes with various decorations.