Mine are 2.5 mos. I was noticing that their mode of operating was always opposite one another. And they tended to be awake for a little bit then doze for a little bit. This made it hard for me to eat, bathe, make a phone call, etc. I finally decided to try something, and most days, it works nicely.
I have picked a nap-time in the afternoon. I now swaddle them and set them in the crib. Usually, one sleeps soundly and the other doesn't, but the one that doesn't sleep dozes some and seems content to lie there and chat with the motionless ceiling fan (they love the ceiling fan!). This way, I usually have 1.5 to 2 hrs before someone cries needing to eat or be changed.
For the rest of the day, I let them sleep and eat as they want. I have been enjoying my daily hour of alone time for about 3 weeks, now.