It was a deal with a lot of lather in it. Unilever's $3.7 billion acquisition of Alberto Culver in September bought together the producer of Dove and Pond's with the maker of haircare products TRESumme and VO5. Consumer staples do relatively well in weak economies. So it makes sense the Dutch conglomerate would want to expand in an area like shampoos, which for most is a must have household item, even during a recession.