If you fold laundry, tuck a love note in a folded pair of socks or in a pocket. If you make dinner, cut a heart into a biscuit or on top of a pie. Mail him a love letter, or just a blank pc of paper with your perfume on it. Tuck a note into his windshield wipers. Set up a scavenger hunt with clues leading to more clues leading to xyz (xyz being whatever you want...candle lit dinner, popcorn and a movie on the couch, whatever).