In China they have a thing called "Singles Day", which is basically the opposite to Valentines Day, only for single people were you basically self-indulge on your personnel favourite hobbies and interests. The date is, suitably, the 11th November (11/11) but unfortunately it clashes with Remembrance Day in the UK so I can't see the idea catching on here.
I never liked Valentines Day, single or in a relationship. If you're single it's a reminder that you are, and if you're in a relationship it's a load of unnecessary fuss and ritual. It's better in my opinion to celebrate anniversaries in relationships.