Buying more than one thing?
Three products from their three cheapest stores means paying postage three times, which usually costs more than buying everything from one slightly pricier shop. Add a few products to a haul and this page works out which stores to split the order across, postage included.
Where it can. Most Australian skincare shops advertise a free-shipping threshold and never state what they charge below it, so a small haul often has no delivered total we can stand behind. The page says so rather than guessing.
Look for Add to haul on any product page, or the + at the end of a row in any list.