Quiting my job

Today I had to put in my 3 weeks notice at my job. I put in my 3 weeks notice because we aren't leaving for 4 weeks but we have a lot of packing and I want my work to have more time to find a replacement for me. It was tough because you never know how they are going to react or what they are going to say. I have mixed feelings about leaving to because I like what I do and my kids, but I want to move on to the next stage in my life.