We've done it, and still often do. We found Coles was cheapest, but for some reason for our area we were assigned some not-very-close store, and they did stupid product substitutions all. the. time. So we swapped over to Woollies. I find the Woollies website easier to use, but Coles has upgraded theirs now so it might be better than it was. We mostly do click & collect because the timing suits us better than waiting for the truck. Fruit & veg has been consistently good, you always get more meat than you paid for. It's more expensive, but we buy in bulk when things are cheap, so that evens it out. Also, we only do our fortnightly shop online, it's cheaper during the catalogue that isn't govt pay thurs.