A brief guide to the jargon in retail planning. Convenience goods. Items you need daily or weekly. Food beverages, tobacco, alcoholic and non-alcoholic beverages, newspapers and periodicals, non-durable household goods. Comparison goods. Things you might shop around for. The list includes clothing, DIY, household appliances, tools, pharmaceutical products, games, music and so on. GIA. Gross internal area – the area within the store’s walls. Also called gross retail floorspace.