How Many Different Paint Colors?

[Manuel A.]

I was just in the process of streamlining the painting process (when it comes anyway), so I started doing what J Scott does and gathering a list of paints I like. One question, to help me out, for you all is how many different paint colors do I need?

I was thinking:
- Interior Trim/Exterior Trim (Same color... white...)
- Bedrooms
- Kitchen (I want it to stand out)
- General Interior (hall ways, living room, dining room, etc...)
- Bathrooms
- Master Bathroom (I also want to make it stand out)
- Exterior

Just want to make sure I have it all covered, and I want to make sure I'm not making the house look like a rainbow with too many different paint colors. So if you think I'm diversifying the colors too much, please tell... Just a note, I am going to use natural, light, earth tone colors.

Thanks BP!