It depends. Sometimes i'll have 2,but it's mostly 3. I used to line the 3 up side by side,as best as you can in a bowl,but i've recently started putting one on top and pouring the milk slowly so it soaks into the top one then filters down to the bottom ones. The other day after a hard(ish)bike ride i had 3 weetabix and a large scoop of muesli,along with 3 spoonfuls of brown sugar. I only use full fat blue top milk,as i'm after gaining weight. Skimmed milk on weetabix is something i don't have to suffer!
Ps...I do like the milk warm,so it soaks the biscuit and you get that creamy mush,but i'm not allowed to use the microwave in this place

and i only have 1 pan which is usually soaking after being used for a savoury meal.