LOL!
To add - reasons not to press after midnight... On Sunday I was pressing the horizontal sashing strips with cornerstones for a quilt I'm working on - and pressed the teal cornerstones inwards rather than onto the white sashing so that they don't show through.
Then for whatever reason - I carefully re-pressed the seams on the main strips so that the seams would butt correctly when I joined everything. Well - I carefully pressed the seams towards the vertical sashing strips - so now the seams are all set to sit on one another. So the first thing I had to do last night was re-press the main strips yet again.
Fortunately it is a 5 block by 5 block quilt so not too many seams to worry over.
Cheers, K