Joe from Personal Finance by The Book has an excellent article posted titled "Four Ways a Part Time Job Will Change Your Life Forever". It is very persuasive and I hope you will hop over and check it out.
It reminded me of a time when I had the opportunity to work two jobs. It started when I could not find a job so I took a part time evening job for some income until I could find a full time day job with benefits. When I found the day job and went to turn in my resignation for the evening job my boss asked if I could stay on even if only for 5 or 6 hours a night.
I used my day job for my regular bills and living expenses and my evening job for whatever I wanted. I lived it up. I bought a nice diamond ring, a computer for my son, a diamond necklace for my daughter, cash for the other son, and went out to eat whenever I wanted. In retrospect I probably should have paid off my $15,000 mortgage or bought a new car but hey, live and learn. I was younger then and thought the prosperous times would go on forever. I still had a good time but I honestly worked all week, went to church on Saturday, and slept all day Sunday. It was hard. So I talked to my boss again and went down to three days a week.
I had just scheduled this post and then read one on Beating Broke called Are You a Peter Pan Spender? And, I knew I was busted! Ouch. Again, I will mention it was a looong time ago and I still enjoy the ring.
Joe's ideas are much more practical and in the long run probably more beneficial and WILL change your life if you apply them. Hope you check them out.