I agree, but you should be strategic. In courses where you could get an A with minimal extra effort, you should do it. You don't want to find out later in life

I agree, but you should be strategic. In courses where you could get an A with minimal extra effort, you should do it. You don't want to find out later in life that your GPA has become a limiting factor, i.e. if you're turned down for jobs or if you decide to go to grad school. Try and keep the GPA reasonable, i.e. at least a B average; it doesn't need to be spectacular.