I have three cheap notepads, the kind that open all the way up and fold back.
1. Computer stuff, passwords and when I did updates or added programs.
2. Telephone log, documenting discussions.
3. Code research log, makes for doing the next search quicker.
Do NOT get the type with perforated pages so you can pull sheets out, over time all the sheets want to fall out on their own.
I have a 4th really small notepad I keep in my man purse, a travel kit that holds my large shielded passport wallet, large cell phone, loose change, cigar cutter and lighter, utility knife and so forth.
This mini note pad (plus pen) is getting used more and more to write stuff down, not just for myself but for others also transitioning to an all electronic world. Transferring from mini note pad to medium sized notepad is easy, tape or staples. In some cases, photocopy and paste in.
I could write most of this stuff down using the stylus wand pen on my Samsung Galley Note, but the time it takes and ability to share is extremely awkward compared to the old methods. Plus when the phone bites the dust, the notepad will still be around. Some of my notepads are 20 years old now (
I don't have kids).