I know a lot of people do their BBT charting online, but is it possible to find a book anywhere, that would maybe be, something like a notebook, but made purposely for charting with the graphs inside and such?

I would prefer using a book of some kind, to doing it online or on my computer, as I can't take the internet everywhere I go, nor can I take my big fat desktop computer, but a book is easy to take everywhere and people are so used to seeing me take books into the bathroom, they're not going to ask questions (some of my family members don't know I'm ttc).

Also, what thermometers are best for doing your BBT and which is the better way of doing it, orally or vaginally?
I bought a digital thermometer this week, which claims its +/- 0.1C accurate. Its a brand called "Assess" and it puts my temperature, orally at 36.3 right this second.