Do you have some numbers and you need them to turn into some other kinds of numbers? Avoid State. When I say state, I don't mean a short lived variable to store a value before you loop over something, I mean a class attributed that is mutated in X number of times across different methods.
A good rule of thumb is "all stateful variables this function uses should be declared within this function and all mutations should be visible by reading this function"
Overuse of objects can result in object-oriented obfuscation.