Save.
I started with about $4000 in hand (I ultimately thought it was going to cost around 5k instead of the 10k it's actually going to cost, but that's a whole other story), and I hit that 4k mark real fast. It got me pretty much through solo, but then I was out of money. Not even 20 hours into the course.
I ended up taking a ~3 month hiatus because I had no money, and am just now getting back in the air. But now I'm having to do it slowly, because I simply don't have 5,000 to hand over to my flight school.
I s'pose my point is this - it's much better to have the money ready upfront and fly consistently than it is to try to gather up money as you go along, having breaks here and there due to lack of funding. It's more efficient, you learn better, and you'll end up paying less in the long run.
In any case, enjoy your training!