I use S26 Gold as well... heard about the cheaper option after they had already started on S26 and wasn't keen on swapping them. I just wait for BIG W to have it on sale, they seem to be the cheapest.
I have a friend who used http://ezyshop.com.au/ for home delivery shopping after she had a back operation recently. She said they were really helpful and the fresh fruit, veg and meat was all good quality! Apparently they pick the fruit and veg from the cannigvale markets to order and cut the meat to order as well!
In terms of shopping, when I can't leave the kids behind, I go early and if it's not hot, I park at the closest entrance to the supermarket and do a mad dash into the shops for the twin trolley. I know it's far from ideal but have tried laying them both in the bottom of a normal trolley until I get inside, but the ground is often so uneven and bumpy! I have wondered if the supermarkets would bring a trolley out to you if you parked at the nearest entrance to their store then phoned them.
I actually emailed Coles today and had a little whinge. Had a moment in my local coles today. They only have a twin baby trolley and a trolley with a toddler attachment. I only realised today that the boys are now too big for one but too small for the other! We need the traditional type trolley with two seats. I had left the all three kids in the car, made two trips back and forth with a useless trolley, had the beginnings of a migraine, the 4 year old crying because she lost a sticker in the car, and I left without the fruit and veg that I desperately needed! So by the time I sent the email to coles I was livid... and hungry because there was no food in the fridge!
I am just frustrated with the serious lack of twin trolleys in every shopping centre I want to shop at! Midland, Belmont... only one coles in the entire Bunbury area has a twin trolley and only ONE at that! I do actually wonder how may twin+ mums do grocery shopping with the kids when there seems to be no trolleys at all in the majority of the stores!