For phone messages, ideas that come to me while I'm working on something else, etc., I use 3x5 scratchpads. These are super cheap, so I have no qualms about scribbling five words on one, throwing it in my inbox, and tossing it out after processing.
For meeting notes and the like, I use an 8.5x11 pad, preferably grid-ruled. A grid-ruled 8.5x11 spiral notebook is also nice, as I can mindmap on the fly in landscape format.
For brainstorming and planning, I use either the same 8.5x11 pad or an 11x17 sketchpad.
I tend to dedicate notebooks to ongoing projects. The exact notebook depends on the project. Moleskines are nice for this sort of thing, but YMMV.
Katherine
For meeting notes and the like, I use an 8.5x11 pad, preferably grid-ruled. A grid-ruled 8.5x11 spiral notebook is also nice, as I can mindmap on the fly in landscape format.
For brainstorming and planning, I use either the same 8.5x11 pad or an 11x17 sketchpad.
I tend to dedicate notebooks to ongoing projects. The exact notebook depends on the project. Moleskines are nice for this sort of thing, but YMMV.
Katherine