For her I recommend; Clothes- What girl doesn't love clothes. Sweets/ Chocolates,
Candles, Heels/Shoes, a Watch, Nail Polishes, Lush Valentines Goodies.
For him I recommend; Clothes, Chocolates/Sweets, Trainers/Pumps, Aftershave, Socks, Something technical, Something Novelty and something meaningful to your relationship.
I hope this has given a bit of inspiration...
What are you planning to get your loved one this valentine's day?