The charities have a lot of information on their websites, below is some general advice to help you get those needles clicking.
Color Outside the Lines: I remember coloring books, and how careful I was to never get the crayon color outside the area I was coloring in or it would be ruined. Not so with knitting. Especially with scarf knitting. Because of all of the yarn choices we have, putting together beautifully color-crafted scarves is so easy. And so fun.
The charities involved usually have free knitting patterns and advice on their websites so do not be worried by all the details as you really will be able to find a garment to suit both your knitting skills and the babies needs
Finally, one essential accessory to keep your equipment safe is a set of knitting needle caps, which are designed to be placed over the end of your needles when they are not in use. As mentioned above, needles can cause damage to bags that they are kept in, and can even prove a safety hazard, especially if they fall into the hands of children.
Bliss: One of the many ways that you can support Bliss is by knitting for babies in special care units. Knitted items are most helpful for babies about to go home, but there is also a need for blankets and hats for babies in hospital. Knitted items are often not suitable for intensive care units – stitched cotton is preferable. However for larger babies, and in high dependency and special care units, knitted items are often very welcome.