To pick the right color for your space, grab lots of paint chips, place them on the wall near the trim, and look at during different times of the day to see how light affect the color. When you’re ready to start testing shades, paint sample colors onto sheets of heavy paper instead of the wall so you can move them around and not make a mess of your walls.
I disagree with your criteria to hire a painter. A prompt returned call is nice but does not indicate the quality or fairness of the painter. As far as a written estimate, that should be more of a qualifier for the bid versus an evaluation criterion. I'm not sure one would have favorable results by hiring a painter on this basis. As far as the bidding process, change orders should ONLY be used if the customer requests additional scope (PMP 101). Angie's list should consider asking reviewers if/how much they were told to pay compared with the estimate. Unfortunately, there are a lot of contractors that are unethical and need to be accountable.
We just had our entire house painted by Warline Painting and couldn't be happier with the job they did. Heidi was wonderful in helping us pick colours that worked well with our decor and our ideas. Warren and his crew were clean, professional and a pleasure to have around. The extensive prep work that was done on our house and their attention to detail really shows in the final product. I have already recommended Warline Painting to friends and family and will be having them come back to our home in the Spring to paint the exterior.
Back to the article. You can add water to all latex based paints / thinner to oil based paint. The tinting base has absolutely nothing to do with it. Say you are working outside and throughout the day you have to add a little water to keep the same consistency. If somebody really tried to add 20% to 50% water they no longer would be painting they'd be performing a whitewash or pickle finish.