In the Thuringian spa of Bad Sulza, Remann further developed his conceptional and technical knowhow. It is the largest showcase for cheesemaking knowhow. Retail owns Currys, PC World, Knowhow (in-house services) and various international electronics retailers. Learning is one aspect but sharing his knowhow is another. A branch in Brussels trades under the Knowhow brand. As a result, the demand for more contraceptives and protective knowhow increased. Based on the knowhow acquired from this test, "LABI1 Namba" was opened in 2006. David is fired from the brewery, which nears bankruptcy without his knowhow and is sold. Shops also have a "KnowHow desk", which offers advice and services.