Maybe this is so simple everyone already does it...

I've been in the workshop the last few days, and it occurred to me I'd never heard any mention of my upcoming tip online, so at the risk of telling you what you already know, here it is:

My tip of the day is to use non-latex powder free exam gloves while building. These are the same gloves Nurses and Doctors use every day. You can buy a box for about $10, and they will last you quite a while. They are non-allergenic, so anyone can use them.

CA and epoxy dont get on your fingers anymore.
No more paint on your hands.
No more fingerprints on that new covering job, cowl, or canopy.
Great when applying graphics, because you know you'll get 100% stick everytime.
No more messy fuel residue on your hands while cleaning your airplane, or doing maintenance.
No loss of feel, touch, or dexterity while building.

Give it a try... The first time you try them, you'll have to have them in the workshop from that point on.