It depends on whether you live in a dry climate, or like me, in Maine, where sometimes it gets really humid. I ruined a gun barrel by not cleaning and storing it in a closet, near a sewer stack. By the middle of winter, I could barely see through the .223 barrel and it took lots of soaking before a rod could be pushed through. It was badly pitted!
That said, I like to clean chrome-moly barrels soon after getting home from the range. Stainless barrels get cleaned less often.
Semi-auto barrels tend to get really dry in the chamber and leade, so be sure to lube those areas. Break-Free works fine, but don't over-do it.
More relatively new 742 Rems that aren't cleaned after shooting a few rounds end up with rusty chambers. The first shot after storage will often result in a stuck case with the rim torn off. Use that chamber brush and lube lightly, then pass a dry patch through the chamber before firing.
JP