I can't believe I am saying this, but NOW is the time to make your move.
95% off is less than free. Here is the math on my theory.
If item a is $100 and tax is 10%, then your cost to take it out the door is $110.
If that item is 95% off, the math is as follows:
$100 - 95% = $5 and 10% tax of $0.50, so you are paying $5.50.
That is 45% less than the tax you would have paid on the item at the original price.
So as Jean Luc Picard said best: "ENGAGE!"