Brushes- you really only need a few small ones for any details, and a couple of bigger brushes to do a wash (unless you are painting really big). For the washes, a nice large and medium hake will do just fine- they are cheap and easy to find from any major art supplier. As for the small brushes, you really can't skimp on quality, sable is probably your best choice, but that doesn't mean you have to pay out the nose- Blick artist material makes a fine set of inexpensive sable brushes, as do many other companies.
Palettes- while working at home or in your studio- a large ceramic WHITE bowl is great to have, as well as a few small dishes for your paint (as many as you feel you need at one time). Squeezing out all the liquid watercolor into a palette for it to dry up, defeats the purpose of it being liquid in the first place; of course someone might argue that some companies make palettes specifically designed to keep your paint fresh- really not necessary. If you want dry paint, buy dry, otherwise keep it in the tube unless you need it. If you are on the move, traveling, or just working outdoors, then you really only need a small jar (use the paint right from the tube, off of the pencil or crayon. I've been using a Script brand glass ink jar that was designed with a divided well inside (as to where to get one: I bought mine from a junk store- it is about 15-20 years old, I'm guessing)
I could go on forever, but..... I will probably just feature some of those items later. If your curious about something particular, it never hurts to ask, and maybe I will talk about that next time.
Have fun, and thanks for reading,
Jonathan Parks
Painting: "water" by Jonathan David Parks