NEW YORK--Buoyed by solid hiring, healthy pay gains and substantial savings, shoppers are returning to stores and splurging on all types of items. But the big question is: How much will supply shortages, higher prices and staffing issues dampen their mood this holiday season?... Americans, already fatigued with pandemic-induced social distancing policies, may get grumpy if they can't check off items on their holiday wish lists, or they may feel disappointed by the skimpy holiday discounts....