Network scanning tools - adding one more

Earlier I did a short list of tools I have used for scanning my network.
I forgot one that I use:
SoftPerfect Netscan
Which is ugly but really useful.  Has a neat button for finding DHCP servers (uber useful), can list ports, shares, AD info and a bit more.  IT also exports to CSV (which oddly AngryIP cannot, though I still reach for it first) which is useful when building your first couple of lists.

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Why do I care about ugly? 

Emotion & Design: Attractive things work better

That's why.  That is only one example of research and anecdotes showing that what we see affects how we feel.  How we feel affects how well we work.
Ugly tools are not less effective, but they are less likely to be used and a tool on the shelf is useless.
</aside>

Now I have covered the tools I use regularly for scanning my network (I think).
However there are LOTS of free tools out there that each do something different and useful in network scanning.

Explore, test, find the one that fits your needs, and when all else fails combine wireshark with nmap to get the details on almost anything.