Watch your Jaw: The jaw is an often overlooked hinderance to the voice. There are actually many jaw-release techniques that are used to help open up the voice. From massaging the muscles to positional release. The one I find easiest to teach is a myofascial release.
Place your hands over the vertical part of the jaw just in front of the ear (like Munch’s the Scream) and pull the skin down. Breathe and relax the jaw. Do this for a minute and then try your voice without using the jaw.
Steaming: The vocal folds are just thin folds of skin and can dry out quite easily. Drinking water is always a beneficial thing, but it doesn’t go straight to the folds, it can take a while for the body to absorb and distribute that water. Steam goes straight to it. (don’t try and breath the steam straight from a kettle, that’s a little too hot!!!)
Stretching: Your body needs to support your voice, so stretches and physical warm-ups allow your voice to sit more naturally and work more efficiently. (Yoga and Pilates are always good techniques to use to become more body aware)