Practical use of philosophy? Motivation - I have some periods in life when I need motivation - reading the philosophers that say you can't stay in one point or you'll perish helps me through that periods. It also helps me to understand myself sometimes - philosophy, psychology, biology, art...
And yeah - knowing things about philosophy can sometimes get you laid
Practical use? Well, it won't get you a Corvette directly, but some people need things like art to exist. For some people living is experiencing life, trying to find out why things are as they are, not advancing up the ladder.
Well - considering people like Ghandi - thanks to such individuals, some people think before shooting a gun. Is it practical use?
I guess you'll say I completely misunderstood what you meant. Oh well, whatever, nevermind.