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 in the Aeneid is a fascinating character, a wise and respectable ruler of a great civilization. A comparative study of the Dido--Aeneas episode in Virgil's Aeneid and Christopher Marlowe's Dido, Queene of Carthage. Dido also hinted we may hear her sing about her new passion on her next album.