Some rely fully on the sale for everything, including actual chometz, e.g., pastries, cookies, bread, pasta, couscous, crackers, bulgur, beer and whiskey, wafers, oatmeal, chocolate with wafer inside, “kabukim” [coated peanuts], Bissli, ice cream cones, granola, porridge, puffed grain, malt, grain-based breakfast cereals, etc.
Detailing chometz and its value
When selling actual chometz, one should note in the harsha’ah more or less which products are being sold to add legitimacy to the sale. Some also estimate the value of the products being sold; this shows that it is a truly authentic transaction.
Special challah
If someone has a special challah set aside, e.g., one of the twelve Shabbos challos a Rebbe made a bracha on or “parnassa broit” from a Rebbi, he should make sure to eat it before Pesach or burn it on Erev Pesach. The poskim discuss whether it can be sold to a non-Jew, considering that the owner wants it to remain intact (שו''ת ערוגת הבושם סי' קי''ב ). Some say if it was sold, bedieved it is permissible after Pesach (שו''ת אבני זכרון ח''ג סי' כ''ה); others allow selling it lechatchila – but it could be that if one does so, it is only considered “shirayim” from a goy...