Builders cleans, internals, roof lanterns, Fsg, gutter cleans, conny roofs, solar panels, velux windows. 2 storey plus windows, dormers, any windows set back over an extension. Electric gated houses, big houses, mid terraced, anywhere with poor parking. Houses where you have to stand directly below windows to hurt your neck, any with bins or plant pots etc. Customers who want to chat, customers who watch you, underpriced houses, barking dog houses.
Probably a load more to boot.
Funny next house I'm going to i hate, it's big, 3 storey, hard to reach back windows etc was just thinking about dumping it.
A better question might be what houses do you like doing.