Possible Duplicate:
How can I hold my camera steady?

I was shooting some photos last night and I was having trouble not blurring the images. The issue I know comes from me shaking while the shutter is open. A tripod would have been the perfect fix but I did not have a tripod on me at the time.

Are there any techniques, tips, or tricks that I can try to help maintain stability when shooting in low-light conditions without a tripod?

(This question applies to both point-and-shoot and DSLR cameras.)