I do, and here's how I do it. I take the old potting soil, put it in a 3 gallon pot, and pour a kettle of boiling water through to kill it, then I mix it half and half with new potting soil. Things grow very well in this, and I've never had any root rot problems from the old soil.
Didymo (Didymosphenia geminata), also known as rock snot, is a non-native invasive microscopic algae (diatom) that can produce large amounts of stalk material to form thick brown mats on stream bottoms.
Dido - The queen of Carthage, a city in northern Africa, in what is now Tunisia, and lover of Aeneas. Dido left the land of Tyre when her husband was murdered by Pygmalion, her brother. She and her city are strong, but she becomes an unfortunate pawn of the gods in their struggle for Aeneasâs destiny.