October is the month to re-pot any houseplants that have outgrown their container. Never go up more than one or two inches (for very large plants) in pot size when repotting. Remove any rotten or mushy roots. Pry apart matted or circling roots, and cut off those that are too compacted. Doing this ensures so the remaining roots will reach out into the new soil. When re-potting, start with a coffee filter (or similar) over the pot’s drain hole to contain the soil, and then add a layer of soil. Hold the plant at the level you want it to sit and add soil around it to stand it upright (with large plants you may need an assistant). Firm the soil but do not pack it down. Water thoroughly until it runs out the bottom. Set the container aside and add more water until you are certain the entire pot is wet. Use a pot saucer to catch any overflow and place the plant in its new home.