It's astounding how useful and intuitive they are, but my biggest gripe is how easy is for anyone to mess calculations, say, SUM(<RANGE>), by simply adding one row/column/cell.

I use Google Worksheets frequently to track new things that fit into lists/tables, and giving someone else editor access without them knowing a few worksheet nuances means I have to recheck and correct them every month or two.

Does anyone make a sanity checker for Excel or Sheets that notices things like that? Would be incredibly helpful!