I use Aldi reguarly. I'll visually walk you through the store.

Great for snacks for home and parties, DP likes fishy food - tuna, salmon. Then there is the pasta and sauces.
I think the paper towels and toilet paper is great value. I get the 4 pack toilet paper and I'm particular about ply.
Next is the tooth paste (whitening), soaps, again great value. Then there is the drinks, I get the juice, water and for DP gingerbeer. Followed by the frozen section I get the frozen chips, lasagna. DP isn't too keen on the frozen fish tho.

I get the fruit for my birdie. Much cheaper than Woolies. The cleaning products and baking paper, glad wrap. I still buy spray and wipe, shower cleaner, dishwashing tablets and washing powder from BigW/Woolies.

Ham slices, cheese, ice cream, cake mixes, bread and rolls.

Best part are the specials each week, I tend to buy something new each week. This week is laundry - I'm going to get a new washing basket and the laundry divider. You might be also able to get some of the Christmas specials, I got some more rolls of wrapping paper the other day.