Hi Wonderwoman,
Maybe you could try a variation of a three card spread. This is one that I created myself and have used. You start off with three cards like this:
***1***2***3***
1. Who I was?
2. Who I am?
3. Who I will be?
Then place another three cards beneath the life that you want to look at. So for a past life you'd end up with something like:
***1****
**a*b*c***
The three cards (a, b, c) will give you more information about your past life. You can continue drawing three cards - the results are generally pretty surprising.
I hope you find this useful
If not, you could try searching the Tarot Spreads Forum Index thread.
Blessed Be,
Charmy.