Hi and thanks in advance, we are currently charging at standard AusPOST postage rates. We have some products in stock outher products we do not stock so it is hard to do a weight. Also many of our products are very small and light while outhers are quiet heavy. We do not currently ship by weight & have been caught out, is it possible to sell / ship some products by weight and others by item. If I install weight do I have to show a weight on each item? or can we just show weights for shipping, for the larger / heavier items. I am very new to all this so please forgive my limeted knowledge.