I'm not a fan of the lab books — they don't lie flat enough for me — but I do like my gridded notebook (high-quality company swag notebook courtesy of ipHouse). When that notebook fills, I'm not sure what I'll use to replace it.
I also really like Zebra F-301 (and compatible) pens. Inexpensive enough to justify easily buying (and buying again when I lose them), good enough to be worth buying refills for. I keep at least a black one, and often blue, everywhere I am likely to need a pen (home desk, work desk, bag). And the F-301 Compact is often in my pocket when I don't have my bag with me.
I also really like Zebra F-301 (and compatible) pens. Inexpensive enough to justify easily buying (and buying again when I lose them), good enough to be worth buying refills for. I keep at least a black one, and often blue, everywhere I am likely to need a pen (home desk, work desk, bag). And the F-301 Compact is often in my pocket when I don't have my bag with me.