Vacation time is not sick time. If you want any type of vacation at all, you need to plan ahead of time. Offering only 2 weeks is a joke. If you get sick one day, you lose one week of vacation.
Monitoring and rationing sick time is like limiting bathroom breaks or coffee time. if your job does it, you have a crappy employer.
I've used Target for groceries and they're routinely cheaper for most things.