If you’ve been in a long slog of a job search or you’re a student or retiree looking to make some extra cash, a holiday job can provide a stop-gap solution. Some of the nation’s largest retailers, including Macy’s, Kohl’s, Walmart and of course Amazon, have boosted their holiday hiring plans this year. Shippers UPS and FedEx are also planning huge hiring surges, as ecommerce continues to tick up.