An indoor picnic spells romance no matter what season your year and a half anniversary happens to fall on. Send your love a special invitation outlining the time and place. Spread out a blanket right on your living room floor and adorn with some crackers and cheese, wine and chocolate-covered strawberries. Finally, dim the lights, burn some scented candles, play some soft music and you have instant ambiance for a night of romantic celebration.

Surprise your love with a personalized gift basket containing some of his favorite items. Stock the basket with specially scented soaps, a DVD he's been hoping to see, his unique brand of cigars and favorite wine vintage. The objects themselves don't have to be overly elaborate. Simply showing him that you know even the littlest things that he enjoys will have a huge impact and prove that you always pay attention.

Nothing spells romance like a handwritten love note. Take a moment to pen your love a special year and a half anniversary letter straight from your heart to his. Get personal, funny and/or sentimental and let him know exactly how much he means to you and how fortunate you feel to have someone like him in your life. Having your words on paper will warm his heart and give him a special keepsake to treasure forever.

Plan an evening to revisit some of the things from the beginning of your relationship. Make reservations at the first restaurant you ever dined at, take him to the exact spot you shared your first kiss together or recreate the date you had the first time you told each other, "I love you." Taking a special walk down memory lane will make the year and a half anniversary milestone even more romantic and encourage the two you look forward to what the next six months has in store.