One of my all-time favorite new (well, I've been using them for 5 or 6 years now) tools is the very high-tech and complicated Transparent Polyethelyne Painting Aid (TPPA), but the cost per unit is very, very affordable, making them incredibly valuable ... priceless, even!
Once upon a time, I suffered the embarassment of over-sprayed fingers, forearms even, and it seemed I could never get the overspray off my fingernails and out of the cuticle cracks. But ever since I discovered TPPAs, I've sprayed thousands of parts, hundreds of bodies, a few walls, windows, and occasionally the dog ... but I've not suffered a single over-sprayed hand, finger, nail, arm or shirtsleeve!!! I love 'em.
I have a subscription service. For just a few dollars a month, I get a new TPPA delivered to the house every morning ... along with a free newspaper rolled up inside!