Ah dust, you can get away with it on a heavily weathered model, but on an Alclad model for instance, it spells doom.
Good thing is, in photo's you cant see the fingerprints or dust!
As for gloves, I thought about using the cotton ones, but went for latex surgical gloves, the Ansell ones for like $10 for 150.
Just have to remember to wash them before handling your model to remove the fine white powder thats on the outside.
A quick rinse under the tap sorts this out.
If it's a humid day, there is a good chance cotton fibres will stick to your model.