What are the use of all these empty bottles I keep finding? I keep hanging on to everyone thinking that there may be a quest to come where you need a dozen of the things.

Just a moment.... Are they for alchemists to use? I havn't got one of them in my party.

The most obvious use I came across is that if you use the bottle on the black ooze on the southern side of the swamp, you gets yoursel' a cherry bomb.

A gadgeteer might be able to come up with a use for the bottles, too.

Yep. Except for the two above-mentioned uses, the empty bottles are useless.