Yes I still paint! I do Warhammer, Warhammer40K, Historical Wargamming, Car modelling, and everything that enables customization (including painting....just recently into Pinky Street)
For you painters out there who feels a bit tired on modelling (esp painting) just try to contribute one color every day. Yes just one color. You shouldn't get too tired with individual models but in cases of armies these method built them quickly(of course paint them in 'contingents'). I raised an Imperial Guard batallion in less then a month before. And practice....it got me 6 years to get the tricks that so my model look decent enough.
Uh Caramon ? What do you mean by 'lock the colors' down ? if you mean you dont want to paint the model again and wishes to preserve the colors you can do so by using a type of fixer called 'varnish' It has three types; matte ones, semi gloss and gloss, depending how you want the model to look. For warrior miniatures, use matte or not at all coz at times these varnish made the color look not the way they intended. For car models, semi and gloss are the stuff.
Hope it helps