1) Love yourself and all that jazz.
You're single for a reason
2)Remember, this is a commercialised day clearly designed by the patriarchy to remind single women of their utter worthlessness without a man. As such, it is your moral duty to remind everyone of this fact. If anyone says they're in love or uses a pet name for their SO, proclaim loudly that "love" is a trap to force women into submission.
3)Boycott the day. The entire day. Stay in bed and watch anything BUT RomComs, (horror is best) the more gory and inventive the deaths of the characters, the better.
4) If you must leave the house, death glare the following :
people carrying flowers/cards/over sized teddy bears/any of the above,
people who are happy,
overenthusiastic shop signs in red or pink,
people who wish others Happy Valentine's day!
No physical violence please, that's what they want!
6) Go out to dinner with your other single girlfriends/manfriends
Have a laugh, slag off relationships and friends who are in relationships, enjoy yourselves. See, you don't need a man/woman, this is much better, isn't it? ISN'T IT??
5) Spend time by yourself.
Essentially important. Read, cook yourself a meal, collect stamps, take a bath in candle light, do whatever makes you happy. Be utterly selfish for a day.
6) Write yourself a love letter.
I haven't tried this one, but why not?
7) Listen to angry, man-hating music.
I'll leave you with the perfect song for this situation.
Also, anything by the Dresden Dolls.