It is advised to use different groups of tages. For Note Type, for Life Areas, for Details and for System tags.
That results in all tags from all groups mixed in one list.
What I did is adding a naming convention for the groups of tags.
#T<tagname> for all Note Type related tags. eg #T_person, #T_Idea
#A<tagname> for all Area related tags.
#D<tagname> for all Detail related tags.
#S<tagname> for all System related tags.
This results in a tags list sorted by Tag group first and then by tag names within that group.
This makes selection of your tags per note much quicker.