What size hammer should I buy for general household use?

Across specialist communities, the dominant recommendation for general and finish work is a 16 oz claw hammer, with several r/Tools and r/Carpentry posters noting 16 oz is plenty for nearly all hammering tasks. Heavier 19-22 oz framing hammers come up for framing and demolition, but reviewers repeatedly warn that heavier heads add joint fatigue during all-day use.