I love seeing how children develop. Watching an infant creeping to a crawl. Cruising to walking.
I have mentioned Otis walking with his walker wagon before (here and here). It's perfect for a beginner because it is so stable.
Now that Otis is more confident on his feet he has taken to walking with anything.
The Wheely Bug.
He's not just cruising here. He's actually walking around the entire house, even over carpet with these.
A stool.
The Cube Chair.
The high chair.
I have also recently noticed how tall babies look once they start walking. One moment they appear to be infants crawling around, then toddlers standing tall!