A spray gun cup comprising a spray gun cup receptacle, a liner, and a lid member, wherein the spray gun cup receptacle comprises an open end for receiving the liner within a cavity; a base end opposite the open end, the base end being positionable with respect to a work surface with the open end facing upwards such that a base plane passing through the base end is parallel to the work surface; a sidewall surrounding the cavity and connecting the open end to the base end, the sidewall comprising one or more apertures through which the cavity is visible from outside the spray gun cup receptacle; and a tactile feedback member positioned on the sidewall directly adjacent one of the one or more apertures, wherein the tactile feedback member allows a user to know, without looking at the spray gun cup receptacle, that an area adjacent an aperture is being gripped; and wherein the liner is configured to be positioned in the cavity, the liner comprising an open end corresponding to the open end of the spray gun cup receptacle; wherein the spray gun cup is configured such that the liner is inserted into the open end of the spray gun cup receptacle, paint may be added through the open end of the liner, and the lid member may be positioned in the open end of the liner, wherein the lid member is configured to be secured to the spray gun cup receptacle in a direction along a central axis such that the open end of the liner is stretched radially over a liner sealing member of the lid member and finally into full sealing engagement; and wherein the tactile feedback member comprises a protrusion extending radially-outwardly from the sidewall. wherein the spray gun cup receptacle comprises an open end for receiving the liner within a cavity; a base end opposite the open end, the base end being positionable with respect to a work surface with the open end facing upwards such that a base plane passing through the base end is parallel to the work surface; a sidewall surrounding the cavity and connecting the open end to the base end, the sidewall comprising one or more apertures through which the cavity is visible from outside the spray gun cup receptacle; and a tactile feedback member positioned on the sidewall directly adjacent one of the one or more apertures, wherein the tactile feedback member allows a user to know, without looking at the spray gun cup receptacle, that an area adjacent an aperture is being gripped; and an open end for receiving the liner within a cavity; a base end opposite the open end, the base end being positionable with respect to a work surface with the open end facing upwards such that a base plane passing through the base end is parallel to the work surface; a sidewall surrounding the cavity and connecting the open end to the base end, the sidewall comprising one or more apertures through which the cavity is visible from outside the spray gun cup receptacle; and a tactile feedback member positioned on the sidewall directly adjacent one of the one or more apertures, wherein the tactile feedback member allows a user to know, without looking at the spray gun cup receptacle, that an area adjacent an aperture is being gripped; and wherein the liner is configured to be positioned in the cavity, the liner comprising an open end corresponding to the open end of the spray gun cup receptacle; wherein the spray gun cup is configured such that the liner is inserted into the open end of the spray gun cup receptacle, paint may be added through the open end of the liner, and the lid member may be positioned in the open end of the liner, wherein the lid member is configured to be secured to the spray gun cup receptacle in a direction along a central axis such that the open end of the liner is stretched radially over a liner sealing member of the lid member and finally into full sealing engagement; and wherein the tactile feedback member comprises a protrusion extending radially-outwardly from the sidewall.