Kobalt mechanics tool set is on sale for 149.99 until December 24th. Recent normal sale price for the same item has been 199.99.
Alternatively harbor freight has their 301 piece mechanics tool set on sale for 159.99 which is pretty routine. However they have a promotion until 12/24 which grants 20% off the normal 179.99 asking price which should drop the total to about 143.99 (I don't think it will stack on the 159.99 price, but it works out cheaper)
20% off coupon is listed on their home page. It does not seem to be active just yet (PST timezone?)
Sorry I can't edit the title to say Lowe's instead of harbor freight...