I'm with Arthur. The only reason I have UV filters on all my lenses is because I do a lot of daytime into the sun shooting. Most times with a good seabreeze blowing salt spray and beech sand at me at the same time.
I'm not going to get into the debate about should or shouldn't, it's just me. Having said that I must remember to remove them when I do other work. This could explain why I'm not 100% happy with some of the results I'm getting.
Thanks Xenedis as you have put this very succinctly.