I clean all my un-shot guns approx monthly and feel comfortable about it. Takes maybe 15 minutes as I'm watching TV. Just a quick disassembly, wipe friction surfaces clean with patches and lightly re-oil. Oiled then dry patch through the barrel too.
I particularly like Butch's triple twill patches for the bore. They never leave any shedding and just feel solid.
Shoot smart. Shoot S-Mart.