I loved reading this questions & all the replies. I like looking at how we all work out our issues, the best we can. Small kids, whether you work out FT or stay at home, are time consuming & emotionally draining. They are also our greatest wonder & joy. Your hubby could have ADD, as was mentioned, but one thing I keep thinking of was, does he even KNOW what chores need to be done & how to do them? Lists or no lists, he may not even notice the need. Until he has no clean underwear, lol.
I've met several people of both sexes who either grew up NEVER doing any household chores--they literally just came & went with all "services" provided--like excellent room service. Either their parents did it all, or they hired it out, but they are completely clueless of the work entailed to maintain a household. Or they grew up in such Chaos that Chaos is normal, although they may not like it. They just don't know how to change it.
So, if you can afford to hire the help, do it. If you can't, I would look into FlyLady.net. I'm not naturally organized, I tend to hoard & although I love order, have a really hard time creating it & then sticking to it on my own. Before kids, I coped & hid my messes in closets & drawers, so unless you checked them out, the house didn't look too bad. After kids, a bomb went off & I could never catch up. I grew up in Chaos. Any household things I learned to do, I learned at the hands of babysitters or from magazines. So I have been doing my version of the FlyLady thing for a solid year now & it has helped a lot. I wish I would of found her when my kids were your kid's ages--it would of helped our family SO much.
Also, I recently happened upon a book about the 5 Love Languages by Dr. Gary Chapman. I'm not endorsing every idea he has, but this one, I really like. He has a web site with a self-test on it, to determine which "love language" speaks "love" to you, so that you hear it & feel it. An Act of Service--helping or serving the one you love, means more to some of us than others. I listened to the audio book while driving--I'm at the stage of life where I'm driving a lot alone & boy is it boring. While listening to this I realized that my husband needs this type of love, that he gives to us this type of love by going out & "making the bacon" & if he isn't receiving it back, he just feels "used" for his paycheck. So, I have been trying to do little things for him, like take out the trash--not out to the curb, but from the kitchen & baths, etc. It might be "his" job, but why not surprise him with a little gift?
Anyway, I was just thinking, YOU probably would love a few "Acts of Service", that you would feel more loved by your hubby, if he would do a few things for you, whether they were on the chart or whatnot. Maybe write down just one thing that if he would do for you, it would make you feel loved. Ask him to write down one thing for you to do for him, that speaks love to him. Good Luck.