Does bottle size affect aging or storage? Typically I want to age 22oz bottles, but I'm curious if I could get away with aging a smaller bottle. Is there any difference based on bottle size?
Not really.

In theory, larger bottles mean that the little bit of air trapped at the top of the bottle is smaller compared to the volume of beer than it would be in a standard 12 oz bottle.  However, I've been unable to find any research backing this up, and anecdotally it makes no difference.

Larger bottles are favored for aging beers mostly for practical reasons:


Stores are more willing to sell a single large bottle (whereas many often require the purchase of an entire six-pack for smaller beers)
It's easier to share a large bottle, which you often want to do with a good beer you're aging
They're often (but not always) cheaper than the equivalent beer split up between several smaller bottles.


But taste and aging-wise, there's no benefit to larger bottles.