CookBookTemplateTagTranslation - Easy translation.
CookBookTemplateTagRegroup - Using Regroup to order by category on a single table.
ExprTag? - Calculating python expression and saving the result to a variable.
CatchTag? - Catching the content and saving it to a variable.
CallTag? - Just like include, but can pass parameters to it.
PyifTag? - Just like python if expression.
PyCallTag? - Directly call python function or attribute of a module
ColumnizeTag - Put stuff into columns, with row and cell class support.
PaginatorTag - Inclusion tag for generating pagination controls with first/last and adjacent page links when using the object_list generic view.