we had same problem for last 2 years. Massey told us same thing and gave us the traps. our neighbor put some pellets down around our house and low and behold no millipeds this year. I just looked at their website (Ace Hardware) and did not see it but the closest thing I saw was Spectracide but the back of the package did not list Millipedes on the back of the pkg while the one I use does name them.

Our previous home in Florida had these critters everywhere. I was told by a landscaper that they are attracted to wood mulch. Our house was surrounded by wood mulch and even had a dozen or so extra bags of wood chips that they left behind. We got rid of the wood chips and the bugs disappeared.

We don’t have a lot, just enough to be annoying. I started a thread in our Village of DeLuna Facebook group about this, and it’s a pretty common problem, with some having way more than others. We have pine straw in the front yard still, and that’s where we see most of them (porch area). We find very few in the house, and they’re usually dead, but I don’t want to find any in the house. We rarely see them in our backyard that has pavers, rocks, and plants, and no grass. Our home is about a year old now. We do have a pest control service, Superior, but my opinion is they’re pretty useless. Will change once our contract is up. Hubs doesn’t want to do the spraying himself, and I hate insecticides so I’ll never do it.

We've had a lot of rain. Any change and some life form will suddenly explode in numbers. In terms of lizards, the small ones Oreoles are our first line of defense against insects. The other day, we had a 12 inch black lizard in our garage a Texas pinney? lizard. Never saw one before. It is gone now-I HOPE.

Ortho home defense plus diatomaceous earth cuts the population.

To be organically responsible, we simply sprayed water to control ours. Afterwards, we relocated a family of egrets to assist. In hindsight a box of baby chickens from Rural King might have been easier.

The first year I was in my new house I was overrun with them. Deans sprayed a few times but didn’t help much, as the tech said.
Someone told me it’s common in new lawns and they will go away. The next year I had only a few and 4 years later I still have none.

Check online for what attracts them and see if there is a way make done changes to deter them. ie previous poster mentioned damp conditions.

The lizards are called Anoles, and are you sure that was a 12” black lizard and not a baby black racer snake? The snake is very common here.

I suspect the lizard was a Texas Spiny lizard, although they aren't found in Florida from what I read. The oreole was maybe a typo (auto correct?)