I have...and I'm only on my second year with my first kiddo. I have used SOTW, FLL, and RSO from the beginning and was piecing together everything else. Just recently I had a baby and added a Ker to the school mix with a toddler under foot and finally admitted to my husband I needed some actual curriculum, pre made and ready to go. Over the past few weeks we added the WWE2 workbook, SWS, GWG, HT Teach Art to Children, and Singapore math. My life has been SO. MUCH. EASIER. I am even adding Harmony Fine Arts and Miquon for ds and starting the kids on listening to Song School Latin in the next couple of weeks. They are thriving!
ETA: I didn't read your post right, but I'll leave my answer anyway. :)