When I'm writing my weekly review I want to see my habits in a way that tells me which habit I did and which I didn't in this week. Show the complete graph of habits may be enough for this, but how can I see this graph alone? If I opened my agenda I need to go to the next day to see the complete graph again.
You can display all habit graphs regardless of being due by setting
(set 'org-habit-show-all-today t) or any non-nil value.
If you'd prefer to have your habits separated from the full agenda (or not see the full list outside weekly review) you can use a
todo-tags view such as
("h" "Habits" tags-todo "STYLE=\"habit\"" ((org-agenda-overriding-header "Habits"))) and the code from which Aaron Harris posted here to get habit graphs to show in tag and search views. Don't forget to change the variable
my/org-habit-show-graphs-everywhere to non-nil on the first line. The comments there mention it but it's easy to miss.