Twelve years ago I took my first watercolor class from fancy pants landscape watercolor artist, Roland Lee. I bought all of the brushes and paint colors that he suggested. Over the years I have figured out what I like to use. A lot of my fancy fan brushes have been put away. Now I only use Big Gloria, Harold and Petunia (in fact, it may be time to put little Petunia away as well.) Also, I never buy raw or burnt sienna for my colors. Alright, I probably do have a sienna in there, but my point is I buy colors that I like and not the earthy tones just because they were on the list.
I wanted to show my brushes and paints since maybe a lot of people think of the little rectangular open and close kits we used as kids in school when they think of watercolors. "Grown up" watercolors are actually concentrated paint packaged in nice little tubes.
Side Story: I was the worst in Mr. Lee's class. There is absolutely no modesty or low self confidence here. Everyone else was painting shadowed mountains and snowy scenes...I painted a little 2D house. I am not saying "Look at me now!" since I still can't paint a tree or mountain to save my life.