Last year, the night before, I went out and decorated his car with crepe paper streamers and window paint pen on the windows. I wrote cute things, terms of endearment. Or you could decorate the garage door with a big sign and streamers so that when he pulls up in the driveway after work he sees it.
You could make your home like an italian restaurant. Buy the cd "Amore: The Great Italian Love Arias" from Amazon.com and play it. Or Dean Martin's "Thats Amore" for a more lighthearted affair..
Put on a red dress. Men appreciate dresses so much and so rarely see them anymore on women. Put a red tablecloth on the table. Use white china plates, put chocolate hearts on them, or chocolate roses. Make an easy pasta, fettuchini alfredo is easy and looks fancy. I use the jared alfredo sauce. I start out with a zuchini and a hand full of mushrooms chopped into short strips. Throw them into a sauce pan with butter and cook 3-4 minutes. but I add a clove of baked garlic. (I wrap a whole bulb of garic in foil and bake it for an hour.squeeze out the soft pulp and smash it into the sauce, incorporate it well.) Add the jar sauce, heat it all up to a boil, then reduce heat and it's ready. If he's a meat eater add baked chicken chunks, or, throw in some strips of ham. I just cut thin strips from the end of a ham lunch meat package. Sprinkle with fresh grated parmagan, have a salad,(I mix Marie's creamy ceasar dressing and a squirt of lemon, and toss it) and put a brown and serve bread loaf in the oven.. Have a dipping plate for the bread with a mix of olive oil and balsamic vinegar. Have red wine or sparkling juice. Have your kids make paper menus, and be the waiters. Draw mustaches on them if they will let you, and pull back the girls hair in a hair tye. Pin a construction paper black bow tie to their shirt collar.Throw a towel over their arm. Show them how to "present" the bottle of wine/sparkling cider to dad so he can approve it before they pour it for him. Make sure to take pictures! Have the kids make red paper hearts and hang them from the light fixture. When dessert is served at the table and everyone is sitting around, go around and have everyone take a turn saying what they think is special about each person at the table. A little love note on his plate is a nice touch. Men love respect- tell him all the reasons you respect him, admire him, how much he helps you.
Once I put a construction paper heart shaped 'I love you' note in a different place every day for the week. One day in his shoe, once in his sock drawer, Once under the sheet when he pulled them back for the evening, once on his rear view mirror, etc.