Wow! This is like post-war inflation, just when the European economy can least afford it. When I see 10-!%% increases in gas and electric, i wonder how this will get passed on to the consumer. Already, these charges looked more like the utilities bill of a 6000 square foot house in the United States.
Pre-buying stamps in Europe is always a good investment.
Buy your stamps today at a bargain -- the ones with no monetary amount printed on them, because tomorrow, the postal rates go up (information thanks to Eric Tolbert):
Letters within France increase from 56 centimes to 58.
Letters/postcards to US increase from 85 centimes to 87.