I've had women cancel dates and always wonder how to respond. Definitely freeze out for a couple days-depending on how much advance notice and how legit an excuse--but then what? Wait until they suggest another time or offer another date?

Most of the time when I plan a day 2, its something I was going to be doing anyways. That way, if she blows me off, she doesn't feel like shes blowing me off. That way when I say "no big deal" she really knows its No Big Deal... cause I was going there regardless of whether she is with me or not.

I'm more about avoiding than anything. It's much easier to avoid flakes if you are doing something that doesn't seem like a "date." Remember, its about her being comfortable spending time with you. Doesn't matter what you are doing.