[Solved] Almost 18 months, what can I expect next

I spotted the Dad Talk article Child Development and Play 18 months to 3 years. Our little boy is 17 months so I gave it a read.
I wonder what anybody else thought about it.

The first bit about safety was spot on because things still go in his mouth. Our LO was in the garden with me a week ago. I turned around from clearing overgrown weeds so see him taking his fingers out of his mouth and moving his lips. I ran across wondering what he was eating - I used my finger to pop it out . He had found the only plant with small red berries! Fortunately I got there before he had a feast.
I did a few things. I kept an eye on him to see he remained ok. I chopped off all the berries from all the bushes in the garden. I went around the internet trying to find pictures of which berries are poisonous. Our berries were not on the list.

I guess he will be increasing his words fairly quickly soon (he has a dozen at the moment). My Health visitor had said they look for an 18 month old to have between 5 and 20 words. We talk a lot and he enjoys me reading with him so it seems that will help.

We just got into stacking a couple of weeks ago and he now gets the idea and likes building large blocks. I hadn't even thought about rhyming games!! He's a bit wild with his throwing so I might do catch and throw practice outside.

I saw the bit about 2 - 3 year olds. I have been going with him to 2 toddler groups and he gets on well. I've managed to enjoy these more than others we've tried on other days. One group is too regimented for my liking. One I like has real coffee, simple activity a toddler can stick/scribble/do, and enough happens so the time is filled. He really doesn't get the 'singing' bit at the moment: he wants to drain all the juice other children have abandoned.

With play he needs some outdoor energy burn-up each day so he sleeps well at night. He now walks a bit on reigns, splashes in pudles and likes the swings, slides and climbing frames. Because he is young we have a mat that lets him 'draw' with a special pen. You top up the pen with water and when he scribbles the mat turns blue where it gets wet.

I like the bit about having a routine. My LO is best when he has his usual nap at about the same time. It is now easier to see when he is tired: in the day he gets whiney and in the evening he can just look tired and put his head on my lap or he can become very very over active.