Ok so here's the deal I'm building a site at the moment (which has the possibility of becoming quite large) but I realized that my host only supports up to 100 sub domains, so if it grew to more than 100 users then I'd be stuffed, so I have 2 questions.
1) Can I make it use sub-directories instead?
2) Will the sub domains count to my limit?
Any help is a appreciated :)