 Consumer goods companies enjoyed a strong week, but what makes them so special? Reckitt Benckiser Group PLC LSE:RKT, ETR:3RB, Unilever PLC LSE:ULVR and Haleon PLC LSE:HLN, NYSE:HLN are the consumer goods FTSE 100 companies which all posted an impressive set of results and raised guidance for the year. 