White vinegar, available for just 39p, is a versatile household ingredient that can be effectively used in gardening. Mark Dwelly, Head Gardener at Audley Stanbridge Earls, recommends using it for targeted tasks such as weed control and pest deterrence. To eliminate weeds, mix one litre of water with white vinegar and a tablespoon of washing-up liquid, applying it directly to the weeds during hot, sunny weather for optimal results. The acetic acid in vinegar can dehydrate weeds within 24 hours. Additionally, it can deter pests like ants and cats when cloths soaked in vinegar are placed around the garden. However, caution is necessary, as indiscriminate spraying can harm delicate plants and certain patio materials. For cleaning purposes, a 1:1 vinegar-water solution can remove dirt and algae from patios and rust from gardening tools. Furthermore, white vinegar can acidify soil for acid-loving plants by adding two tablespoons per litre of water, ensuring it is applied to the soil rather than the plants themselves.