ohhhhhh i love this! i also wish i could paint my nails as well as you can.
I am actually not particularly good at painting my nails - I use a cleanup method I found on the MakeupAlley nail board (warning: this forum is full of hard down nail polish freaks, including myself, and will make me look insane). It’s described here, and all it requires is pure acetone and a suitably small brush. You could use plain nail polish remover, of course, but acetone works so much faster. It smells like ass, though. I use this brush - only a buck at Target! Rounded brushes work better for me than straight ones, and this one is the perfect size.
So yeah, all this sounds nuts, I know, but I swear it doesn’t take that long…5 minutes tops, and that’s if I’ve been particularly messy.