A waste container, comprising: a canister defining a storage space and having an opening at an upper end and a bottom at a lower end; a retainer frame having a ring portion having an aperture for inserting a trash bag through the aperture and folding an upper edge of the trash bag over the retainer frame, the retainer frame pivotally attached to the canister for allowing the retainer frame to pivot between a lowered position in which the retainer frame is positioned over the opening of the canister and a raised position in which the retainer frame is substantially out of the way of the opening of the canister; and a lid assembly pivotally attached to the canister for allowing the lid assembly to pivot between a closed position in which the lid assembly covers the opening, and an open position in which the opening is accessible, the lid assembly having a hole which aligns with the aperture of the retainer frame when the lid assembly is closed and the retainer frame is in its lowered position; characterized in that the waste container further comprises: a retainer having a rim that inserts into the aperture of the retainer frame, the rim configured to retain the upper edge of the trash bag between the rim and the ring portion, the retainer pivotally attached to the canister for allowing the retainer to pivot between a lowered position in which the rim is inserted into the aperture with the retainer frame in its lowered position, and a raised position in which the retainer is substantially out of the way of the opening of the canister; and a sliding door coupled to the lid assembly, the sliding door being slidable between a closed position in which the sliding door covers the hole in the lid assembly and an open position in which the hole is accessible to insert an item of waste through the opening. a canister defining a storage space and having an opening at an upper end and a bottom at a lower end; a retainer frame having a ring portion having an aperture for inserting a trash bag through the aperture and folding an upper edge of the trash bag over the retainer frame, the retainer frame pivotally attached to the canister for allowing the retainer frame to pivot between a lowered position in which the retainer frame is positioned over the opening of the canister and a raised position in which the retainer frame is substantially out of the way of the opening of the canister; and a lid assembly pivotally attached to the canister for allowing the lid assembly to pivot between a closed position in which the lid assembly covers the opening, and an open position in which the opening is accessible, the lid assembly having a hole which aligns with the aperture of the retainer frame when the lid assembly is closed and the retainer frame is in its lowered position; characterized in that the waste container further comprises: a retainer having a rim that inserts into the aperture of the retainer frame, the rim configured to retain the upper edge of the trash bag between the rim and the ring portion, the retainer pivotally attached to the canister for allowing the retainer to pivot between a lowered position in which the rim is inserted into the aperture with the retainer frame in its lowered position, and a raised position in which the retainer is substantially out of the way of the opening of the canister; and a sliding door coupled to the lid assembly, the sliding door being slidable between a closed position in which the sliding door covers the hole in the lid assembly and an open position in which the hole is accessible to insert an item of waste through the opening. a retainer having a rim that inserts into the aperture of the retainer frame, the rim configured to retain the upper edge of the trash bag between the rim and the ring portion, the retainer pivotally attached to the canister for allowing the retainer to pivot between a lowered position in which the rim is inserted into the aperture with the retainer frame in its lowered position, and a raised position in which the retainer is substantially out of the way of the opening of the canister; and a sliding door coupled to the lid assembly, the sliding door being slidable between a closed position in which the sliding door covers the hole in the lid assembly and an open position in which the hole is accessible to insert an item of waste through the opening.