Vices and luxuries- soap, perfume, alcohol, tobacco, condoms, naturally common ammunition to a smaller extent. Remember, unless it's a war, folks aren't going to be shooting 24/7.
Things like coffee, chocolate, and tea were very popular during WWII and could purchase many other "favors" or luxuries.
Canned meat is king when no other source of protein is readily available.
Think things that wear out but people typically don't put back in quantities. Things like socks, underwear, gloves, mittens, shoes, boots, etc.

Blankets and greatcoats were also coveted. In the event of a global cooling trend, many folks won't be properly clothed.