Abstract: A ladder caddy (10) includes a rigid tray (12) and a ladder-engaging handle (14)which together define a generally rectangular mounting opening (80) positioned laterally adjacent a mounting side (38) of the tray. The mounting opening is of a size and shape for receiving therein an apex portion (82) and portions of leg pairs (86, 88) of an A-frame ladder (84) when the legs are in a separated, deployed configuration, but sufficiently small that the ladder-engaging handle and the rigid tray contact the separated leg pairs of the ladder near the apex portion whereby the ladder caddy remains mounted on the A-frame ladder. The ladder-engaging handle comprises two follower arms (54a and b) which are slidably engaged in track slots (48a and b) of the rigid tray. The ladder-engaging handle also includes an outer member, or yoke bar, (60) which is rotatably attached to the follower arms and which can be rotated to change the size of the mounting opening.