I am attempting a thread where we can identify ways of buying effectively using long-term offers and discounts. I am thinking about reward/cashback, discount or trade accounts etc. I'm not quite sure how this will work, but thought it worth a try. The aim is to create a laundry list of possibilities that self-builders can use to get benefits or knock a few percentage points off their costs. Note that, even though I think that short term or "flash" offers should be posted elsewhere