Ran into some poison ivy

I ran into some poison ivy in my backyard the other day. I was pulling overgrown vines that were mostly Honeysuckle but I found out later that I was also brushing up against poison ivy.  I decided to take a few pictures of it to teach my kids what it looks like so they'll know to stay way.

Here's a mature leaflet cluster.

Here's another leaflet cluster that shows some leaves with jagged edges.

I used to think this was poison ivy but it is actually another plant called Virginia Creeper.

Through this experience and research into poison ivy, I found that they have a memorable saying that is helpful in recognizing the dangerous plants.  "Leaflets three; let it be"