Fast food chain now paying workers daily at end of shift
mysanantonio.com
mysanantonio.com
Taken a step further, perhaps the payroll system could help the employee save incrementally in a Christmas club sort of way? That is, the employee could designate an amount or percentage to be put "aside" in a different account. Obviously, the employee can do this themselves, but why not make it even easier?
These things nudges would certainly be an incentive to show up to work and put in the time.