Like Portia, we've had to make some very difficult decisions re: family income and wage earners in the household.
It's had consequences-- we have neither the retirement nor college savings that we would otherwise have had. Our house is still not paid off.
We've figured for the past five to seven years that I'd simply return to work AT the time of college in order to PAY for college attendance. That is, we always figured that my income would be used for that purpose, and maybe solely for that purpose, given what costs are.
In the end, though, this wound up being a factor against elite/expensive private schools because DD was clearly feeling pressure to make that kind of cash outlay and sacrifice (splitting the household) "worth it."
I hadn't counted on her feeling like that, I guess.