I have. You never flat out say at any point in time that you recommend, XX, as an alternative for spanking.
There are a variety of things that I/we use to discipline the kids. I wouldn't call them "alternatives to spanking" for us, because we feel that spanking is wrong and just don't do it. But for others, they may be seen as alternatives.
I guess the most common thing that we do is talk to the kids. They need to know that what they are doing is wrong and why, instead of just knowing that they'll receive a consequence for doing certain things. If all you do is whack the kid when they do something wrong, then they don't understand the why behind it. We don't want the kids to blindly follow us for fear of punishment, we want them to understand how the world works and the ramifications of their actions as they apply to not only other people/things but also themselves. This allows them to be able to form their own self control by understanding right from wrong, or good from bad, instead of just knowing what will get them punished and what won't.
If they need a punishment, we mostly use time-outs and loss of privileges.
Are we experts on parenting? No. But I'd say that the girls are two of the most well-behaved and smartest children I know. Yes I am biased, but other people say that about them as well so it must have at least a little truth to it