A product for pre-treatment and laundering of fabric having a stained portion, said product comprising a pourable aqueous detergent composition and a cap for dispensing said pourable aqueous detergent composition: A. said pourable aqueous detergent composition comprising: a) a hydrophilic surfactant system having a Hydrophilic Index of from HI 9-15, wherein said hydrophilic surfactant system comprises a cationic surfactant selected from amine oxide surfactants and quaternary ammonium surfactants having up to 26 carbon atoms; B. said cap comprising: a) a base having a base interior and a base exterior opposing said base interior, said base interior having a periphery; and b) a vessel wall having an interior surface and an exterior surface opposing said interior surface, said vessel wall extending from said periphery to a rim, said interior surface and said base interior defining a pour volume, said base interior forming a closed end of said pour volume; wherein: i. said cap is sealingly engaged to a container containing said detergent composition by a connector disposed on said cap and a corresponding receiver disposed on an opening of said container; ii. said pour volume is sized and dimensioned to provide for a unit dose of said detergent composition; and iii. said cap further comprises a plurality of first surface irregularities at a location selected from the group consisting of: on said rim, on said base exterior, between said connector disposed on said cap and said rim, and combinations thereof. A. said pourable aqueous detergent composition comprising: a) a hydrophilic surfactant system having a Hydrophilic Index of from HI 9-15, wherein said hydrophilic surfactant system comprises a cationic surfactant selected from amine oxide surfactants and quaternary ammonium surfactants having up to 26 carbon atoms; a) a hydrophilic surfactant system having a Hydrophilic Index of from HI 9-15, wherein said hydrophilic surfactant system comprises a cationic surfactant selected from amine oxide surfactants and quaternary ammonium surfactants having up to 26 carbon atoms; B. said cap comprising: a) a base having a base interior and a base exterior opposing said base interior, said base interior having a periphery; and b) a vessel wall having an interior surface and an exterior surface opposing said interior surface, said vessel wall extending from said periphery to a rim, said interior surface and said base interior defining a pour volume, said base interior forming a closed end of said pour volume; wherein: i. said cap is sealingly engaged to a container containing said detergent composition by a connector disposed on said cap and a corresponding receiver disposed on an opening of said container; ii. said pour volume is sized and dimensioned to provide for a unit dose of said detergent composition; and iii. said cap further comprises a plurality of first surface irregularities at a location selected from the group consisting of: on said rim, on said base exterior, between said connector disposed on said cap and said rim, and combinations thereof. a) a base having a base interior and a base exterior opposing said base interior, said base interior having a periphery; and b) a vessel wall having an interior surface and an exterior surface opposing said interior surface, said vessel wall extending from said periphery to a rim, said interior surface and said base interior defining a pour volume, said base interior forming a closed end of said pour volume; i. said cap is sealingly engaged to a container containing said detergent composition by a connector disposed on said cap and a corresponding receiver disposed on an opening of said container; ii. said pour volume is sized and dimensioned to provide for a unit dose of said detergent composition; and iii. said cap further comprises a plurality of first surface irregularities at a location selected from the group consisting of: on said rim, on said base exterior, between said connector disposed on said cap and said rim, and combinations thereof.