Hey, last time I counted it was 5. Which might not be too bad, but is awful for me. And I'm right there with you on not being able to photograph or blog this stuff since all 5 are gifts.
I've made a serious effort to finish WIPs this year. i think the key is to take the long view. it's not that i'm not allowed to start a project. I just limit what I start & keep things higher in the rotation. I'll have a main project I'm working on, and I try not to let the others stress me out in the mean time. I think it's worked pretty well.
Maybe you could work on the one that you're closest to finishing or that is going the fastest first, and then work on one that is taking a long time, and alternate that way. Then you will finish some things and get that nice sense of accomplishment but still make progress on others. Of course, presents with deadlines throw this way out of whack.