The design consists of the features of shape, ornament, pattern and configuration of a SINGLE-DOSE LAUNDRY DETERGENT POD shown in the drawings, of which:Figure 1 is a perspective view of a first variant of the design;Figure 2 is a front view of a first variant thereof;Figure 3 is a rear view of a first variant thereof;Figure 4 is a left side view of a first variant thereof;Figure 5 is a right side view of a first variant thereof;Figure 6 is a top plan view of a first variant thereof;Figure 7 is a bottom view of a first variant thereof;Figure 8 is a perspective view of a second variant of the design;Figure 9 is a front view of a second variant thereof;Figure 10 is a rear view of a second variant thereof;Figure 11 is a left side view of a second variant thereof;Figure 12 is a right side view of a second variant thereof;Figure 13 is a top plan view of a second variant thereof;Figure 14 is a bottom view of a second variant thereof;Figure 15 is a perspective view of a third variant of the design;Figure 16 is a front view of a third variant thereof;Figure 17 is a rear view of a third variant thereof;Figure 18 is a left side view of a third variant thereof;Figure 19 is a right side view of a third variant thereof;Figure 20 is a top plan view of a third variant thereof;Figure 21 is a bottom view of a third variant thereof;Figure 22 is a perspective view of a fourth variant of the design;Figure 23 is a front view of a fourth variant thereof;Figure 24 is a rear view of a fourth variant thereof;Figure 25 is a left side view of a fourth variant thereof;Figure 26 is a right side view of a fourth variant thereof;Figure 27 is a top plan view of a fourth variant thereof;Figure 28 is a bottom view of a fourth variant thereof;Figure 29 is a perspective view of a fifth variant of the design;Figure 30 is a front view of a fifth variant thereof;Figure 31 is a rear view of a fifth variant thereof;Figure 32 is a left side view of a fifth variant thereof;Figure 33 is a right side view of a fifth variant thereof;Figure 34 is a top plan view of a fifth variant thereof;Figure 35 is a bottom view of a fifth variant thereof,Figure 36 is a perspective view of a sixth variant of the design;Figure 37 is a front view of a sixth variant thereof;Figure 38 is a rear view of a sixth variant thereof;Figure 39 is a left side view of a sixth variant thereof;Figure 40 is a right side view of a sixth variant thereof;Figure 41 is a top plan view of a sixth variant thereof; andFigure 42 is a bottom view of a sixth variant thereof.