I’ve been a big proponent of keeping my ideas, schematics, drawings, etc. in a lab notebook for years now. I’ve even started putting my notebook online. My current preference is for Moleskine notebooks, but the folks over at the Black Cover blog are convincing me that there are other alternatives out there. They specialize in reviews of pocket-sized notebooks, preferably with black covers. My favorite kind! Right now they are even having a contest and giving away Piccadilly notebooks.
Want something more official (and expensive)? Try one from Scientific Notebook Company.
If you are looking for something more robot-related try the Makers Notebook. It includes squared pages as well as an appendix with resistor codes and all kinds of other useful information.
The one pictured is covered in “pleather” recycled from a freebie portfolio. I recently made one for my wife with a cover made of hot pink Cordura. Also a pocket size version covered in black 300 denier ballistic nylon is undergoing “stress testing” in the back pocket of another engineer at work. So far it is holding up very well.