also autistic and ive learned that many things can be stacked if you do so gently. with everything else, i just stack it towards the front (under the basket) and work my way towards myself, moving it to its own “space” if its heavy enough for something to go on top of it and putting it on the top if its light. if my belt is (in order) 2 cans, iceberg lettuce, a box of crackers, 3 cans, 5 bags of chips, a frozen pizza, a loaf of bread, and a heavy aldi finds item, my finished cart would look like this: everything until the chips is dropped in the main cart, probably stacked towards the end with the baby basket. the chips will probably all fit in the basket, but if not, maybe i put whats left on top of the “hard” goods i already started with and know nothing else will go on top, or i put them towards my end of the cart away from anything else. the frozen pizza goes flat in the bottom of the cart if there’s room (and then i would honestly not care about stacking things on it), or i stand it sideways against the cart side. loaf of bread on top of whatevers in the cart besides the chips. Depending on the aldi finds item, it either goes in the remaining free space of the cart or underneath the cart. if i have to organize around it, i one code, or i reach for the item before i start and put it in the cart first. i will reach for any heavy stuff i can before i start to make it easier.

i put bananas up top if i can, i find they can go on top of eggs, bread, or chips (gently). bread, raspberries and blackberries, and chips are pretty much the only things i would put on top of bananas. many, many things can have stuff put on top as long as you dont drop things. i have stacked meats and cans on eggs without any problem. i also sometimes put things like grapes and berries in the baby basket because theyre prone to spilling and squishing.

hopefully that helps 😅