@Innula: They do everything to ease their ways. If there are advantages for us "normal" people, then that's just collateral.
Tigger: Indeed it's your business and your business alone. Okay, that of your country.

However, I think there shouldn't be posted workers from foreign countries AT ALL. In any country. And I do consider all other countries except for the country I live in FOREIGN countries. Anyways: If you want to work anywhere else than your own country, apply for a visa and working permit like all immigrants. You want to study in another country? Apply for a student's visa there. Nobody in any other country (especially not this wannabe "parliament" in Brussels) should have a say in that.
Same here with Germany: If
I had a say here, there would be closed borders again, the D-Mark would be back instead of the Euro, and there would be both: hefty tariffs on all imported goods that can just as well be produced nationally (eg. most fruit and vegetables, honey, milk, water, coal, textiles, and so on) - with, let's say, 1 DM per ton
and km of delivery (which would make imports from low-wage countries like India or Bangladesh pretty unprofitable) and a toll on all foreign trucks that want to travel through, or to destinations within Germany -- also 1 DM per ton
and km road usage. Locally produced goods would be subsidized instead.
Foreign workers on our building lots? Nope, unless they have visa and working permit at hand. Foreign students? Nope, unless they have a student's visa. Funny pics on tobacco products? Fuck that shit. Each and any shop owner would have the right to open on Sundays as they please, even 24/7 if they please. Restaurants and pubs would have the right to allow or forbid smoking as they please. Smoking in public buildings would be permitted again. There would be ads for alcohol and tobacco again. That stupid name change from Marmelade to jam would be reversed. There would be absolutely no genetically modified ingredients in our food. Companies would have to pay taxes, even each of their subsidiaries. There would be a Tobin tax. And all loop-holes and other tax gifts would be closed.
I could list more - but this wouldn't fit into this thread anymore.