It seems people don't get this, so let's spell it out:
Inflation requires both demand and supply of money. You can't cause inflation simply by increasing the money supply, unless you go totally crazy with it - however, if that supply is there when the economy heats up and demand appears, look out.
Hpwever, 5-10% inflation during a good economy isn't per se a problem: high inflation is a symptom of a bubble economy but may be there without the bubble. And it's the malinvestment associated with a bubble that hurts everyone - "medium" inflation only really hurts people who made the wrong bet on the future value of the dollar.
As long as you don't actually crater the currency, inflation is merely a warning sign of the real problem, and the real problem is people working on things no one wants: from bubbles to government make-work, the stuff we have is just the stuff we make, and if we're not working to make stuff we want or need, we'll all suffer for it.