I'd normally say don't get caught driving with that stuff in view. Then again, if a police dog gets a noseful of it, I don't think he's going to be too happy...
Where does one buy chalk or straps anyways? Between 7" wrists and sweat, I'm losing my grip on deadlifts now....
Dicks'? There aren't any Sportsmart's, Big 5, or other big chains around where I live...
I'd recommend not using straps if possible as building grip strength is important. Chalk and a hook grip should be good. Reverse grip only when necessary.
EDIT - sorry didn't realize I was responding to 20 pages ago.