I thought it would be fun to show my watercolor supplies. As you can see the paints come in small tubes (not dried up circles in a plastic tray.) The tubes are tiny, but last for a quite a while. I am lazy so I use paper plates to mix my paints on.
I tried a lot of different pens before I tried then loved these Micron Archival Ink pens. No smudging and they come in many different sizes. The only problem is you can't push down too hard. I always make sure I have a back up pen on hand in case I've gotten a little too intense.