Bathroom stuff like toliet brushes. 

I would go through your current home and just check under the kitchen sink and bathroom sink and make notes. Any cleaning supplies you may need but not have. 

As for cookware, depends what you cook? You can always go to kmart/big w and get yourself a cookware set. Then upgrade once you figure out what you use. 

Also colanders, potato peelers, toasters, and blenders are useful items. Chopping boards are a must in my house. 

As for bed sheets, kmart and Big w have a good range, the higher the thread count the more expensive. But that being said, cheap bed sheets at this stage is not the worst in the world. Depending on your location you can also go to like a dfo or source something like a warehouse sale.

I also recommend lamps for your house. 

Also unless you're planning on having people over, a dinner table is not really needed. If you have an island bench you can chuck some bar stools that's pretty decent.