How Often Do You Switch Your Templates?

When it comes to submitting free sites and tgp galleries?

Do you have a selection of site templates that you constantly use or do you only use a template a set amount of times before scrapping it?

Right now im in the process of redoing some of the templates i use for free site and galleries but was wondering if i really need to use 15 of them or whether these days it would be better to use 7 or so and just submit a different one every day?

Your thoughts? How do you handle your template systems when it comes to free site and gallery building and submissions?

Regards,

Lee