Useful templates I forget the locations of/format of:

• ((subst:unsigned|user name|date))
• ((Messagebox protected areas))
• ((lang|es|some text))
• #REDIRECT [[Main article]] ((R from alternate name))
• #REDIRECT [[Main article]] ((R from alternate language))
• #REDIRECT [[Main article]] ((R from title without diacritics))
• #REDIRECT [[Main article]] ((R with possibilities))

Helpful places that take some digging to find:

• Wikipedia:WikiProject Stub sorting/Stub types