This SO post seems to suggest that data and template tags shouldn't mix...
http://stackoverflow.com/questions/5046046/where-put-database-interaction-in-django-templatetags
Not sure how I feel about that myself - I see the philosophical argument behind it, but I don't see another more efficiently creating common page elements (like my category dropdowns).
Also, if you look at James Bennett's posts here:
http://www.b-list.org/weblog/2006/jun/07/django-tips-write-better-template-tags/
His code actually *does* interact with the database, as does the blog post here (http://www.webmonkey.com/2010/02/use_templates_in_django/#Roll_your_own_template_tags).
Also, as an aside, each link on our category dropdown is bound to a JS click event - not sure how this would tie in with the custom template tag - separate tag for that part of it?
Cheers,
Victor
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