APPEARS TO BE DEAD NOW
I don't know if this is valid everywhere (I'm in Southern California) or whether it still works, but Home Depot is having a sale on a few different Milwaukee tools. They're suppsed to give you $20 off if you purchase 1 tool; $50 off if you purchase 2 tools, or $100 off if you purchase 3 tools; but there is a mistake in their system that takes off $50 from both tools if you buy 2 tools, or $100 off each of the three tools if you buy three tools (so a total of $300 off your entire order instead of only $100).
I got a Battery and Charger [homedepot.com]
($139), a Circular Saw [homedepot.com]
($119), and a Reciprocating Saw [homedepot.com]
($129) for a total of $87.00 + tax.
It should also work on the Angle Grinder [homedepot.com]
, and Two Pack of Batteries [homedepot.com]
EDIT: In store only; might not work at self-checkout, so it will be even more difficult for a cashier to not spot the error.
There should be a display in store (it was in front of the tool section at my Home Depot) that shows the different tools eligible, I listed them off above.