Arty McGoo did a Q&A on FB a few days ago and this came up. You may be able to post chase it to find all her goodies! She said she actually lets her gel colors dry on the palette...then uses a small cup of water to wet her brush. Reminds me of the old school waterpaints from elementary school. I cant wait to try!
I have my colors in an Styrofoam egg tray (sanitized) and let the colors dry too. I use vodka and now and then water. I tap the end of my brush on the side then tap on a towel too.