I went back to work when my ds was 10 months old. And so he pretty much "day weaned" then (at least on weekdays).
However, he also stopped sleeping through, and at once stage was up to 5 feeds a night - so beware!
I'm not toooooo worried about night waking since we are already up at least 3 times as is but thanks for the warning, hopefully it doesn't get worse ekk!!