Is there a way where I can organize my Categories in Wordpress?

Currently, I can only organize by:
Show as dropdown
Show post counts
Show hierarchy


thanks!

how would you like them to be arranged

I would like to reorganize them manually.

Is there a way to assign a number maybe to each category tag and rank the categories numerically?

I haven't tried to do it manually. I don't think it is possible. But I am not sure. What do you want to do with it then?

Try My Category Order...
http://wordpress.org/extend/plugins/my-category-order/

It's what I use and it works great.
You just drag and drop the categories in the order you want.