For whatever reason, if you need a non destructive HTML tabifier, I’ve found a great one. It will NOT modify your code.
http://tools.arantius.com/tabifier
I’m working in a shopping cart environment that can only handle one template file for the product pages and it must be < 64kb, meaning I've started to remove all whitespace to fit in my templates.
You really can't argue that the size should be below 64kb, if you have one template to handle infinite product types.