If needed, I paint everything a light, neutral color (only 1 color is best). 

They use the same colors and materials and truly spend the minimum time and money.   

As long as I know all I'm doing is cleaning the place, and my previous pictures are still a good representation of what the property will look like (I'm not painting a different color, doing new flooring, new landscape etc), then I start my ad a week or so before the tenant moves out.

I passed the Charles Barnes online program but I flunked my state exam with flying colors. :( I’ve been searching for PSI practice exams and heard about Exam Smart.

Investors should be reading just as many books about psychology as they do about investing.

I had a long post about it in the Investor Psychology section. 

I have a master's degree in organizational psychology with specialization in consumer psychology.

Also, there seems to be something psychologically challenging for good tenants who get a brand new 1-year lease in front of them that makes them go out and see what else they can get, whereas they seem to forget that they're renters if you just let it go M2M on expiration. 

Sorry @Mindy Jensen   I am a w2 wage earner but I also  maintain my church 2 acres, bushes and flower beds for money for 22 weeks out of the year and put in some color during winter. 

If the lease prohibited painting the walls and they did not put it back to the original color you could keep the deposit to repaint the walls they mis-painted.