In this fabulous new episode, Sarah Steel shares her loathing of hoovering (or is it vacuuming?) Demitris Deech tells us about the frankly incredible Bertha Benz and the first ever motorised road-trip she went on in 1888 with her kids, and Dave Harries wants to share his knowledge of the mattress and it's soporific history. And as a bonus, we also find out that Avocados are not really vegan!