Bedroom setting
When my girlfriend was out, I went to her house with 3-4 dozen red roses, and put them all around her room. Then in the middle of her bed i placed a wooden chest. Inside, I filled it with rose petals and placed in there a bottle of her favorite perfume. Then, I put candles all around the room, and when she got home, I lit them and turned out the light, and hid in a room next door. She came in and saw the roses etc, and gasped. She walked over to her bed, opened the chest and pulled out a piece of paper I had placed in there. On it was a note saying "I love you, from Guess Who". By this time I was at the door, and when she shut it, I said "Hi". She looked at me with tears in her eyes, and asked if I did this. I said yes, and she ran over to me and hugged me, then kissed me. We've been together ever since.