I use YNAB, so I can't speak for Mint, but I have only 4 master categories: Spending, Bills, Goals, and Reimbursable
Spending has all the small day to day purchases. This is where I need to focus when making spending decisions:
Groceries
Target/Walmart
Costco
Restaurants
Fuel
Medical (copay, prescriptions, etc)
Repairs (minor)
Kid Stuff
Fun Money
etc
Bills has the stuff that is periodic, and usually small, predictable variation:
Housing (Mortgage, Property Tax, Insurance)
Semi-Annual Bills (car ins, life ins, car registration, AAA, memberships...)
Monthly Bills (water, electric, phone, cable...)
Goals is for emergencies and large purchases:
Reserve (car, medical, home) -- for insurance deductibles and large repairs
Vacation
Big Items (furniture, new computer, major home improvements etc.)
Christmas and Birthday (I just like this to have its own category instead of lumping it in spending)
Reimbursable
Business Travel