Just wanted to add moral support by showing you how it gets easier.
DD is 3.7 now and DS nearly 15 months. He is walking, and can feed himself. At last I can sit them both down with their plates and drinks and (sort of) let them get on with it while I tidy the kitchen (so I don't have to do that once they are in bed).
They have a bath together and need only light supervision. I can get things ready in DS's next door bedroom while keeping an ear out and popping in every two minutes.
Our bedtime routine is now easy - DS has his story and bottle and goes straight to sleep while DD reads in her room upstairs. Then I read her a story.
DD is getting on for four and is very independent now. She will go off and play in her room while DS has a nap, which means I get a nice chunk of time on my own to mess about/do jobs. She has also come out of the toddler phase. While she can sometimes be moany if tired, generally she is much more rational and amenable to reasoning with. When DS was a newborn you just couldn't reason with 2.5 year old DD, she was just a big balloon of (strong) emotions, ha ha!
Of course DS is walking and climbing everything so that part is harder than when he just sat like a podge in his bouncy chair and gurgled. And of course there are the sibling arguments!
But generally it is much more fun now, sometimes we have a real laugh at the breakfast table with them being silly with each other.
Now, should I have a third, or not?! (Noooooo!)
Onwards and upwards everyone x