The ornamental design for a golfcartcaddy, as shown and described.
FIG. 1 is a front elevation view of the golf cart caddy of the instant invention;
FIG. 2 is a top view thereof;
FIG. 3 is a right side view thereof; the left side view being a mirror image thereof; and,
FIG. 4 is a rear elevation view thereof.
The broken lines shown in the drawings represent portions of the golf cart caddy that form no part of the claimed design. The dashed dot dashed dot lines represent the boundaries of the claimed design in FIG. 4.