Coffee bags that actually get me through a boiler job

This isn't about flat whites in nice cups, this is about what's in the van. Eleven bags of beans I've actually bought, brewed in a dodgy cafetiere between customers, or necked as a quick oat flat white when a job's running over. Local roasters mostly because I like keeping it E17. Rated on whether they survive a thermos and a long Tuesday. Just saying.