Matty

Hello,
I'm new to this board and have made some quilts for family which are ok, but not great. I think my major mistake with those was not cutting absolutely perfectly, and of course then the piecing is off too. One of the quilts came apart in the wash. So now I am starting a new quilt, and want to make it better, Is there a reason why I can't use a 1/2" seam when sewing squares together? I realize that there is extra bulk, but my sewing machine can handle that fine when doing the "quilting" part.

Thanks for your input!
Matty