I've not been knitting for long and last night started a dishcloth on shorter than usual needles.
I've realised that I usually hold the right needle under my arm for stability and ease - it's also good for when changing the yarn from back to front in say moss/seed stitch.
In the end I switched to larger needles as I just couldn't cope with dropping the needle again and again and trying to stabilise it against my leg.
I've only now realised that I'll have the same problem when I come to use circular or dpns (I'm planning a shawl on circulars).
How should I be holding the needles?