Creeping charlie (Plectranthus australis) is a South African evergreen perennial, also known as Swedish ivy. In the garden, creeping charlie has a tendency to spread and take over. Contained in a pot indoors, it is less aggressive, but will still require some pruning in order to keep it to the shape you desire.
Snip off all flowers if you want to encourage the plant to grow more foliage.
Go through the plant with your fingers, inspecting it for dead or dying branches. Snip them off with the shears or pull them off with your fingers, depending on their thickness.
Cut back the longest vines to the desired length. Make the cut immediately above where a leaf joins the stem.
Pinch 1/2 inch off the tips of new stems. This will make the shape of the creeping charlie houseplant more compact and encourage the plant to send out more branches.