Often times I will be emailing back and forth with a client and include specific links to Marketo Programs, Campaigns, Emails, Smart Lists etc etc.....
One downfall is that when you click on a link, the Marketing Activities navigation tree on the left is collapsed all the way, so I have no idea where the asset is located. Even when "Collapse Folders" is disabled, the navigation tree on the left does not expand nor highlight the asset which you clicked to.
Ideally, in the navigation tree would highlight the asset you clicked to, collapse all other folders except the folders containing the highlighted asset. See screenshot: