Whenever we can put the kids out and send them away we do. Then I convert our livingroom into some kind of wonderful fantastic place. I use throw pillows covered with satin and or silk fabrics I pick up here and there during the year when I see fabrics on sale. I try to keep the colors coordinated. We have indoor picnics, play games (board or card games), talk, laugh, eat food, drink, and enjoy each others company.
Sometimes I dance for hubby. He loves that and it doesn't cost him our hard earned money and I am his reward at the end of every dance.
I have also at times transformed our dining room to an expensive restaurant by pulling out all the stops. Candles, flower petals, fine china, and dinner (Chinese, Mexican, Italian or anything affordable even fried chicken works). Dim the lights and eat by candle light and just talk about everything but the kids.