A) if you're leaving fingerprints, you need to consider wearing cotton gloves when handling your work. They can be bought in large quantities fairly inexpensively.
B) George Tice used to wipe his prints with a large powder puff to clean the surface. I use an anti static cloth myself. For glossy paper, breathing on the print and wiping carefully will help. I've used alcohol, but it in turn it leaves a slight smudge. Then the breath plus wiping fixes it.