I got this idea from Radio 4. Not sure if it'll work but you just summarise what you're doing right now such as "nursing a cold" or "planning for Christmas". Not alphabetical or connected to others' posts.
I'll start with:
Making banana cake
Parents-in-Law. What do/did you call them?
Well Labour’s “patriotism” didn’t last very long, did it? 🇬🇧