Horizontal, schmorizontal

My cat, like most cats, is pretty insistent on sitting in very specific places. There are the standards like the laptop keyboard (she's perfected stepping on [fn] and [f7] or [f5] to turn on the visually impaired voice over program, the regular keyboard, L's lap, certain spots on the comforter, etc. She also has a favorite chair and damned if a non-horizontal orientation of said-chair is going to keep her off of it.