Oregon has tried (meaning the liberal state government) many times in the last 30 years to institute a sales tax. Our property taxes are very high here... they want to add the sales tax to the already high income and property taxes. Failing this, they are adding "usage fees" to everything under the sun...
A fee to stop your car by the side of the road during winter snows
A 1000% increase in the annual corporate fees
A scheme to tax the number of miles you drive your car (everyone has to have a GPS unit, the fees vary according to whether you are driving through a particular city)
Numerous other increases in taxes that are not voted on
Eliminate the "double majority" rule (no tax measures unless more than half the registerd voters show up to vote, as well as more than half in favor of the measure)
Philadelphia, PA (Really Bensalem)