Unilever's Latta margarine brand is notable for its dedication to innovative packaging. Its latest effort is a double-pack concept that consists of two 100g portion packs-labeled, respectively “Knick!” and “Knack!”-joined together across a perforated edge. Once purchased, the packs are easily split, enabling the second to remain closed while the first is in use, extending product freshness. The concept was developed to meet the needs of a growing demographic of single occupant households for whom a single margarine tub may be unsuitable. But the dual tubs, supplied by RPC Bebo Plastik (www.rpc-beboplastik.com), are also a convenient size for the office or a picnic.