It would be great to have possibility to add a contact to multiple static lists right from contact record page (right side bar) with simple multiple checkboxes option. Instead of going to new page "manage lists" and then to pop-up window.
Also it would help if names of the lists that contact is already a mamber of are displayed in lists section in contact record. As for the moment we see only the number of listst the contact is a member of.
Less clicking, fewer pages = more time saved;)