Taxonomy, URLs, and capitalization?

Best practice (or, at the very least, my personal preference) suggest using all lowercase URLs. In my case, I create a view with taxonomy terms as an argument and use taxonomy_redirect to redirect taxonomy links to my view. But if I do this then my taxonomy URLs are like (assuming I created capitalized taxonomy terms):

http://www.example.com/colors/Red
http://www.example.com/colors/Green

but I want the links to be (lowercase):
http://www.example.com/colors/red
http://www.example.com/colors/green

How do people handle this? Should I just create all lowercase taxonomy terms? That's what I'm leaning towards. Thoughts?