I hate cleaning chain, chainrings, rear cluster, spokes, pedals.
I cut brake and shifter housing (and cables) with a Dremel fitted with cutoff wheel, then use it to make the end of the housing nice and square. The heat melts the inner sleeve a bit, but I immediately shove a small pointed scriber whose OD is about 2 mm in there. If the opening's still a bit undersize, I use a small drill in a hand chuck (just larger than cable dia.) to open it more. Sometimes need to trim a bit of the outer plastic right at the end with an X-acto knife. Takes longer to describe than to do, and relatively satisfying.