I also heard that, that people in North America are expected to bring their own stuff. Here it's just normal that everything is provided by the tournament organization. I usually only bring a pen to a chess match/tournament, and sometimes I even forget that!
Another big difference is that in the US, entry fees are usually alot higher than here. Entry fees here vary from € 5 (smaller, usually blitz tournaments) to € 50 (the Dutch Open). Most weekend swisses are about € 25. (€ 1.00 ~ $1.42)
I played chess in the USA (southeast) from 1973-1997 and then moved to Europe and have now been playing since then. (Portugal and Spain mostly) When I was in the US I often wondered what the differences were and now I know firsthand. One of the big differences is that in Europe the organizers of events furnish clocks, pieces, boards and even scoresheets. In the US I had to provide these things and every player usually took their little carry all bag that held pieces, clocks, board. :-) There are other differences ofcourse and we can discuss them if there is interest here .