I have a feeling that most gardeners know this plant very well, though perhaps not by name. Creeping Charlie is also known as ground ivy and gill-over-the-ground. It is often found taking over flower beds at a rapid pace and many years before I began using herbs as medicine I spent long hours pulling buckets full of Gill out of my beds. But Gill is a medicinal plant as has it's own gifts to offer. It represents to me the epitome of people's medicine, because not only is it likely growing in your yard right now, but you would be hard pressed to find this herb sold in any form at the health food store.
Gill is a bitter tonic, and one of the first plants in the spring we harvest to bring us out of winter's slump. The whole above ground plant is very nutritive and high in vitamin C. We add it to our smoothies and chop it into salads. You could also add it to cooked dishes.
As a tea, Gill is warming and toning. It can be used to treat coughs, colds, bronchitis and fever. Drink it warm to induce sweating if you are in bed with a cold, or let it cool first if you do not need it's febrifuge property.
Use Gill as a poultice for wounds or squeeze out the juice to rub on bruises.
Gerard, a 16th century English herbalist, has written that Creeping Charlie "purgeth the head from rheumatic humours flowing from the brain." I'm not exactly sure what he meant by that, but it sounds like a good thing.