No-Cry sleep solution

I'm going on week 2 of my LO waking up every hour (sometimes less) at night. She was sleeping like a rockstar, waking only twice a night then going back to sleep very easily (Shes 8 weeks old now). I go back to work on Wednesday and I can't function like this. My question is has anyone used the No-cry sleep solution? Does it work? If not, what did you try that worked for you? I'm desperate but I don't want to make her cry it out. She's too little.