Looking through lots of small parts needing to replace on my car, (screws, graumets, plugs, etc...)

Anyone have good recommendations of where to find those misc. peices at local stores in your city? Does NAPA, Advance Autoparts, etc carry a majority of the random nuts/bolts/plugs/graumets/ etc I'll need to do alot of replacing of my old rusty counter-parts?

Thanks I'll go check after work, but just sitting here bored and curious.