I’ll be quick about this; I have no idea whether a cell has an applied conditional formatting or not without having to dig into the Format > Conditional Formatting… dialog box. For me, this is unintuitive and a little annoying if I’m trying to set up more-than-simple cases of conditional formatting for columns of data.
Is there any other way, requiring less clicks, that I can find out if a cell is conditionally formatted? The ideal implementation in my mind is something like the edit state of the document on the status bar (asterisk if edited from last save, check/blank otherwise) combined with the visual cue of comments in cells (a little corner arrow).