> Just dig out your change jar, roll up all of the coins and take them to the bank. The result is extra folding money in your pocket, employment for people at the bank, more money in circulation, extra drawer space, increased retail business, increased production at the plant that makes those paper rollers . . .

That wouldn't actually solve the problem, if anything it would make it worse. Money is a commodity, just like cars and books and stuff. Increase the supply in circulation, and you devalue it a step.