Interior wall paints (and rollers/brushes). I recently remodeled my house.and decided to buy the really good stuff instead of just the well known brands from the DIY store. Man, what a difference that makes. Painting is sooo much easier and it dries much nicer.
I'm from Europe, so we don't have that brand here. I used Sikkens Alpha Rezisto. It's washable and scrub resistant. Perfect since I have pets and kids.