I think for a business to properly take advantage of accepting Bitcoin - it should cater to a more international audience by providing as much info about labelling, packaging, shipment and possible customs hurdles as possible.
Specifically for nmteaco - I'm in Australia, and I'm reluctant to order because It's not obvious how the tea is packaged and whether it would get through customs.
(e.g are all ingredients labelled thoroughly so that customs doesn't classify some of it as unidentified seeds/plant material?)
The australian customs service website seems to suggest that the herbal teas will get through, if they are less than 1kg and 'commercially prepared and packaged'.
http://www.aqis.gov.au/icon32/asp/ex_casecontent.asp?intNodeId=8867894&intCommodityId=922&Types=none&WhichQuery=Go+to+full+text&intSearch=1&LogSessionID=0I guess at the moment, providing extra info like that is a bit of a hassle - but down the track, when there are more bitcoin users globally it would surely be worthwhile.