If you have kids, you can claim a notebook/computer, and your internet because they pretty much these days need it for schoolwork, up to something like $1500 per child, so with 2 kids you could claim the years internet and a new notebook.
I know my mum is claiming the household internet connection because my little brother and sister have to use it for assessments and assignments etc.
when i worked for maccas i had to have a pen, so i claimed stationary.
If you drive anywhere during work hours for work if you document reason and kms you can claim them (eg: going to someones house to set up a set top box at 4 in the afternoon) claim kms to and from the location.
umm... travel, so if you drive to sydney from canberra for a trade expo work said you should attend, claim the kms and if you stay over in a hotel claim that too, oh and food while youre there.
claim shoes/workboots if you have to buy them but uniform besides that is provided, you have to wear shoes to work.
most importantly.... KEEP RECIEPTS! without them you can only claim what might be a small percentage of what you actually paid. this year im keeping a notebook in the car and writing everything i do down.
and after all that, if you doubt being able to claim something, get an accoutnant to do your tax, then next year you can claim what he cost to do your tax return! lol.