Hi K.,
I just wanted to take a minute and respnd to your post about your little guy.
When I had my little boy I also had a 18 month old at home and found it much easier to get on with day to day activities when he was content. If he was laying on the floor happily I thought we were doing great! However, when I took him in for his 4 month check up I got a real wake up call. Our ped. checked him out and sent us to a cranial specialist. Apparently, from not having enough tummy time he had developed quite the flat spot on his head. Looking back at pictures it was so obvious his head was extremely flat in the back but at the time my husband and I saw nothing.
I remember having to go to the specialist and she measuerd his head and told us he was just over the border line of needing to wear a helmet 23 hours a day for up to a year! My heart broke thinking something so simple could have been prevented with darn tummy time (no matter how much he hated it!) We worked with him for a month and believe me he was never on his back again except for sleeping and thank goodness it rounded out enough that he didn't need to wear the helmet.
I know all kids are different but just keep this in mind. You can check out the website http://www.cranialtech.com/ to see what you can do to make it more enjoyable for both of you!
If you have any questions feel free to contact me! I wish I would have known sooner!
A.