Charles gave you some good alternate choices, but I doubt any of them will save you much time. There are TONS of people trying to avoid that 23!
The traffic is horrible during rush hour, but manageable during the off-peak times. I am lucky that I travel against the traffic to and from work. If you could arrange your work hours a bit you might make it much easier on yourself. From what I can tell traffic starts on that 23 south about 7am & ends about 9am or so. And going north on the 23, well it gets bad starting about 3pm until probably 6:30 or so.
They are widening it, however, and hopefully once that is complete things will be a little better. I find it hard to believe that ONE lane is going to make that much of a difference, but it sure cant hurt.
I just thought of a couple other paths you could take, which take you down through TO, but could keep you off the 23. Take Madera towards TO, it turns into Olsen Rd and under the 23 freeway and then just stay on it, it becomes Lynn Road and that will take you down to the 101. You can also take Madera, it turns into Olsen Rd and then just past the 23 fwy turn left on Erbes Road. You can take that down to TO Blvd, then TO Blvd right until Rancho Road & get on the 101. However, depending on where you are going in Camarillo, Charles' last suggestion would probably be the best
