Bob,
I always keep the current TCR at the house, where I use it the most. The next most recent one stays in the car, so it's available for any flea market-antique shop-garage sale finds. I also have the next-to-the-last issues of The Gaming Table, the Diceman's version of the Las Vegas dice book, and the first issue of the Campiglia/Wells price guide in the car.

Also, I highlight the chips that we have, so the TCR that's in the car also serves as a partial "inventory" of our chips.