Where do people put their spare inner tubes etc ,on a bike if they have a dropper post? (And dont where a pack)
Thanks

Back pocket
Toe clip strap to seat rails (Wrap it in cling film first)

Taped with leccy tape at head tube end of front triangle.

Wear it across your shoulders a bit like a bust collar bone sling, not a Mexican gun slingers ammo belt

I’ve got a saddlebag that attaches to the saddle rails.

I had the exact same issue. I run tubeless but needed somewhere to carry a spare tube or two. So, i blew them up and popped them in the tyres. Genius eh?

Oh yeah? Bet it takes you ages to get them out when you need one. Not so clever now are ya!

Damn. Knew there was a flaw in my plan. But, i also keep some spare air for my forks in my dropper post.

That, at least, is a logical thing to do.