>>4190669I like swapping lenses between 24, 40, and 85. They're all general purpose focal lengths that can be used for anything so I never worry about being stuck with any of them, and I get noticeably more IQ than I would with a zoom without spending 3x more money and carrying all that weight hanging off the front of the camera at all times. Even without pixel peeping.
I just pick the one that will probably cover everything for a while (sometimes days) and don't think about focal length, just how stuff looks in the viewfinder.