Oh, Twinmommy, hang in there!
My ds and dd are a little over 2 1/2 now, and they both made it through the exact same stage your little ones are in. Of course, then one or the other of them would go right back into it, so for a while it felt like it would never end, but, really, it has. Stick with your instincts and your heart, and get as much help as you humanly can. I will admit that sometimes I just couldn't take it and would occasionally say, (ok, yell), "just cry" but it only made things worse.
To commiserate for a minute, I had found a free early childhood care program in my city, just for a few hours a week, which I put them in, not because I thought it would be great for them, but because I just needed to have a few minutes to myself. Well, most of the time I ended up being in there with them...either nursing one or both of them, or at the least being in the room where they could see me. And because "I wasn't fostering theire independence" they kicked me out of the program!! This was over a year ago, and I'm still steamed.
I am so glad that this forum exists, and wish that I had had this support and resource when things were so unbearably hard. Here are some of the things that we did/do to cope:
we have a fabulous double stroller (Inglesina) that we used as soon as I could hobble a half-block (after my c-section). That stroller literally saved my sanity, b/c both babies were soothed by it and almost always took their naps in it until last year.
I also followed the tactic of being really present for both babies, even if I could only hold one: we sang a lot, used their names a lot, verbally reassured them that I was here and would help as soon as I could, etc.
We had a "baby playground" everyday with pillows, blankets, etc. plus all of the things a mommy needs, and I would hold one with the other in the crook of my leg, or put them both down and play with them at the same time (one hand for each baby, lots of going back and forth, looking crazy!)
I also learned to nurse them both at the same time out of sheer necessity and still do it often.
We started out with them sleeping in a cosleeper right next to the bed, and when that stopped working at ~6 mos. (every time I'd nurse them to sleep, lay them down, and they'd wake up screaming), I started putting them right next to me (NO SPACE!) and that worked...so we got a really big bed, I learned how to nurse lying down, and we've been doing it ever since (ups and downs along the way, but worth it all).
Okay, this is way, way too long, but I hope some of it helps. I'm happy to answer any other specific questions instead of just rambling along!
Last note, my friend says all the stages spiral, and I think she's right...just when I think life has me at the very, very end of my rope, things calm down. And just when I get complacent about it, I can't be two feet away from them again...sigh.