What to buy at the grocery store

Now that you've made two recipes and you're feeling a bit more confident, its time to go grocery shopping!
You should always have these ingedients: onions, garlic, lemons, basil (for Italian), a chunk of Parmesan cheese, a can of chopped tomatoes, olive oil, butter, vegetable stock cubes for soups, breakfast tea bags
The basics: wholeweat dried pasta, eggs, wholewheat bread, spinach
Other handy items: tuna, chicken, potatoes
My favorite veggies: mushrooms (all types, but esp portabello), avacados, cherry tomatoes, carrots, cauliflower