If you think that philosophy isn't a practical major, consider the following:
Philosophy majors do exceptionally well on the GRE. According to a study of GRE scores from 1988-1991: Philosophy majors had the highest mean verbal score of students in all majors.
Philosophy majors had the second highest mean analytic score of students in all majors.
Philosophy majors had a higher mean quantitative score than all other humanities and social science majors.
A 1994 study shows that Philosophy majors also do very well on the LSAT. The mean LSAT for Philosophy majors is higher than it is for both Political Science and Pre-Law majors.
The mean LSAT score for Philosophy majors is the fifth highest for all humanities and social science majors. (The highest are Linguistics and Classics.)
You might also be surprised at how well Philosophy majors do on the GMAT. The following information is for tests administered from 1991-1996.
The mean score on the GMAT is higher for Philosophy majors than for any type of Business major (Accounting, Finance, Mangement, etc.).
Outside of the hard sciences, Philosophy has had either the first or second highest mean score on the GMAT each year.
Including the hard sciences, the mean GMAT score for Philosophy majors is fourth or fifth highest of all majors.
Click here for a summary of how different majors perform on the Graduate Record Exam.
Click here for a caveat regarding this data. None this proves that if you major in Philosophy you will ace these exams, but it gives you good reason to think it won't hurt! And you will learn things that will be useful no matter what you do.