Retailers and restaurants might have a little more luck o’ the Irish this St. Patrick’s Day as consumers gear up for private parties and special outings to celebrate the Irish holiday. According to NRF’s 2010 St. Patrick’s Day poll of 8,560 consumers, conducted by BIGresearch, celebrants will spend an average of $33.05 on decorations, party favors and green attire, up slightly from $32.80 last year. Total spending is expected to reach $3.44 billion.