I wear mineral makeup too and doubt I'll ever go back to liquid foundation, it's so good!! I actually bought a full kit after two trials at one of those stands in a shopping mall. It Bella Pierre and yes, it was pricey but it looks great, is easy to use and feels so light to wear.

I always use black mascara. I tried brown once and it did nothing IMO. Clear mascara worked just as well.

If I'm spending the day at home I don't wear makeup though, just moisturiser. I like to give my skin a break a couple of times a week.