it might seem wierd, but it worked for me....

make a 7 day meal plan that suits the whole family (if possible)

collate a list of stores on the computer, and under each one ALL of the ingredients required to make these meals assuming you have nothing ie Butcher followed by 2kg sausages, 3 lamb shanks etc

add essential to the list (toilet paper etc)

save, and print out a copy.

On shopping day, cross off what you don't need (ie still have some left to use up)

send DH once a week (same time each week if poss) with the list and one or two of the kids.

obviously this has to be adapted to each household, but it worked for me. Now I am a little more organised, I have a notebook permanently on the kitchen bench with heading such as VEG, ALDI, COLES etc and write things down as I think of them. Then once a week I meal plan and add in the gaps, tear off the sheet and send them on their way! DH actually enjoys the time with DS as well.

HTH