Found 4th May 2013
Homebase have Evergreen Complete 4 in 1 lawn weed, feed & mosskill 400 sq m pack normally overpriced at £25.99 each. The current offer is buy 1 get 1 half price which brings it down to £19.49, just below the widely available price of £19.99. With the 20% off all gardening this weekend it comes down to £31.18 for 2, £15.59 each which is just above the Amazon cheapest ever (for 1 day) price. Not sure if the half price offer works on reserve and collect but could give you another 62p through TCB.