How come lab notebooks are ridiculously expensive? Also, I guess most notebooks are slightly bigger than composition notebooks

I'm tempted to make a spreadsheet template or PDF. It's pretty silly to spend a lot of money on a lab notebook when you can print a few grid pages and bind the book yourself

Current status

Hmmm...

My DIY lab notebook sheet came out OK, I think. But I don’t think I can align the grids exactly so the front matches the back (noticeable on cheap office paper). Then again, I guess there’s only so much you can do with a spreadsheet and an old printer
https://mastodon.social/media/lPzJ-WL9Uju-_MN6x7Q
https://mastodon.social/media/mUflm80rmdygErMkPSY

I was hoping LibreOffice's PDF export would preserve the grid boldness and other formatting. Alas, at least on Windows, all the grid lines seem to be very faint after export :(

I'm making a downloadable LibreOffice Calc spreadsheet for anyone who wants to print their own lab notebook. The paper size is US-Letter, but it should fit fine into A4 size. The grids are set at 5mm, which is pretty standard