Well, ridiculously late. But because of the day, I'm just gonna throw all the Who-related Valentine's I've gleaned from Tumblr. (So the people I follow are Two/Jamie nuts. I make no apologies, because well, I am similarly afflicted.)
(AND LAST BUT NOT LEAST... I made this :D)
Day 01 - Your Favorite Quote
Day 02 - Your Favorite Classic Series Episode
Day 03 - Your Favorite New Series Episode
Day 04 - Your Favorite Doctor
Day 05 - Your Favorite Companion
Day 06 - Whatever Tickles Your Fancy
Day 07 - Your Favorite Piece of Music
Day 08 - A Who-Related Photo That Makes You Happy
Day 09 - A Who-Related Photo That Makes You Angry/Sad
Day 10 - A Who-Related Photo That You Took
Day 11 - Your Favorite Season (Classic or New)
Day 12 - Whatever Tickles Your Fancy
Day 13 - Your Favorite Villain
Day 14 - The Villain Who Scared You the Most
Day 15 - Favorite Who-Related Tumblr
Day 16 - Your Favorite Who-Related FanFic
Day 17 - A Piece of Who-Related FanArt
Day 18 - Whatever Tickles Your Fancy
Day 20 - The Character Who Is Most Like You
Day 21 - Your Doctor Who OTP
Day 22 - A Who-Related Fan-Site
Day 23 - A Who-Related YouTube Video
Day 24 - Whatever Tickles Your Fancy
Day 25 - Favorite Who Actor
Day 26 - Favorite Who Actress
Day 27 - An Episode You Wish Hadn’t Been Made
Day 28 - An Episode Idea You Created Yourself
Day 29 - Who You Think Should Be the Next Doctor
Day 30 - Whatever Tickles Your Fancy