The present invention provides ergonomic grouting tools attached to a glove, mitt, brace, or other passive retention means worn on the hand of a user and methods of using them. In particular, one grouting tool according to the invention includes an elongate tool blade, which may for example be a squeegee, a hollow flexible tube, or a solid, flexible, generally round member, attached proximate to and extending along the fifth digit side of a glove. Reinforcement material integral with the tool blade is preferably included to prevent the tool blade from pulling away from a user's hand during use. The glove itself may be composed of fabric dip-coated in plastic, or otherwise waterproofed/sealed, over palm and finger portions, and uncoated over a wrist region and part of a region covering the back side of a user's hand to provide breathability and comfort.