Gouache Again!

 It looks like everybody is using the airtight palettes. Is it just the latest trend, or something I should seriously look into? Especially considering so far I don't do much painting. I think I'll hold off and check into it, see what I can glean about it, and just get back to drawing for now. Maybe a gouache painting every now and then, but no new supplies unless I start to really like it (ie get better at it).