Would like to set sorting on a per-notebook basis

[A different Erik 2]

I like being able to sort some of my notebooks by title. I like being able to sort some of my notebooks by update date. I wish I could set my preferences per notebook rather than globally. Thanks for your consideration of this feature request. 

[LSS1 5]

Yes, I have wanted this for a long time. I have some notebooks that I need to sort by title and others by update date, etc.

I second this

[DTLow 5,736]

Sort options for saved searches has also been requested.

My solution to this is to address this on my Mac with AppleScript.