Mouthwash
A business podcast from Paul Armstrong
Includes transcripts
Mouthwash was TBD Group’s live audio show, launched by founder Paul Armstrong in 2021 as the world’s first audio show built just for Twitter Spaces while the platform was still in beta. Across its multiple seasons it pulls in a genuinely electric guest list; including Pulitzer Prize winners, behavioural science experts, and creative luminaries alongside NYT/WSJ bestselling authors, Silicon Valley heavyweights, psychologists, and activists for unscripted, no-holds-barred conversations you won’t find anywhere else with a different theme every season. Previous sponsors include ecologi, Meta,Shell amongst others.
© 2026 Paul Armstrong · more info
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