Pursue a Hobby
Volunteer with Friends
Movie night with other single friends
Dinner date at home or at a restaurant with other Single Friends
A day of shopping...splurge a bit!
Pamper yourself: spend the day at the Spa.
Do something nice for someone else.
Spend Time with Loved Ones
Attend a single's mixer in your area.
Go on a mini road trip.
Pretend it's just a regular day and go about with your normal daily activities.
PS: Valentine's Day is not for Couples Alone!