I definitely feel the same and have resorted to pasteurising in water at 71-80 degrees Celsius. Barley straw, dried grass clippings/hay, a mix of both, a mix of either with cardboard and wood shavings from the lathe and so on.
Looks like the short dried grass clippings may be a way to go - and I am doing a favour for a lawn mower guy at the same time.
keen reading more experiences.