I use different trims sometimes throughout a house or room to room depending on a wall color. I will also use different whites for trim depending on the wall or ceiling color. Sometimes this is a hard sell with painters who don't typically like to switch colors a lot so that they can buy paint in bulk less expensively. Paint is one of the areas that I love, however, and it really can make such a huge difference that I will strongly encourage my client to use my recommended paint schedule. For softer, neutral colors I like Benjamin Moore Ivory White in High Gloss for trim. For bright colors like yellow or pink I will use a brighter, cleaner white such as Farrow & Ball's Winborne White in a High Gloss. Hope that helps!