Lou - at this time of year you can often buy perennials which will now be a good size, and you can split them up. You might get three small plants from one of those, which you can pot up and grow on for planting out next year. It's a good way to save money and get more plants.
Excellent idea thanks.
You know it makes sense Verd!
Some bigger plants can be used for taking cuttings as well, which will help to increase your stock. It might be useful if you have a cold frame or something to overwinter anything quite small or vulnerable, just to keep them out of the worst of the winter weather.