How many WordPress plug-ins do you use?

I currently do not host or run a WordPress blog/site so I was wondering in total how many plug-ins people have if they run a WordPress blog/site. It would be very interesting if you could also give us a few names of the types of plug-ins you use.

 

Fantastico lets you setup a WordPress site along with all it's addons really easily. I would recommend you use it if you ever decide to run a WordPress blog. I came across this site:
http://www.sitesketch101.com/15-incredible-wordpress-plugins-you-need/
a few weeks ago and it gave me a great list of plugins to work with and select what I wanted, and it could help you too.