With tomato prices soaring, gardeners can save money by growing their own plants using a simple technique. A popular gardening content creator, Sally, shares that by taking side shoots, or suckers, from existing tomato plants, you can create new plants. These suckers grow in the spaces between the main stem and branches, and instead of discarding them, they can be potted in a 9-10cm container filled with multi-purpose compost. This practice not only increases your tomato yield but also allows the main plant to focus its energy on producing fruit. Additionally, you can grow new tomato plants from slices of ripe tomatoes by placing them on compost and covering them with soil. Seedlings should appear within 1-2 weeks, and once they have developed two sets of leaves, they can be transplanted into larger pots. This method is a cost-effective way to enjoy homegrown tomatoes.