When we're all done celebrating dad this Father's Day, we'll most likely have run up a tab of $12.7 billion, according to the National Retail Federation's 2015 Father's Day Spending Survey.

Some 39.7 percent surveyed said they'll purchase apparel items for dad, like a new dress shirt or necktie.  Another 43.3 percent of us will opt for experience gifts. such as tickets to a ballgame or a special meal with the family, spending a total of $2.6 billion.

Gadgets are always a popular gift, with one in five shoppers saying they're going to buy dad a tablet or smartphone for Father's Day.  A nice card is always a safe bet too.  We'll all spend about $777 million overall on them.

Online shoppers plan to spend an average of $157, the survey reports.  Just over 74% of Americans will celebrate Father's Day this year.