Cheap shipping option for parcels under 250 grams

[azeeau8]

Hi to all,i am an eBay seller but quite new i am selling few items and all of them are under 250 grams but i have to  pay Auspost around $7.40 for 500 grams satchel even it’s 80 grams. Items i am selling can't be sold too expensive is there any cheaper option i could use to deliver small items who can compete Austpost $7.40 flat rate Australia Wide?

i have received a parcel from eBay seller i ordered recently was in only $7.95 with shipping and had two tickets on the parcel $1 each that a paper cutter bigger than my items in weight and size. That means that costs him just $2 which is great but there is no company name on it or eBay label. Would you guys like to help a young and new seller with your experience that would be much appreciated.I have Attached tickets photo in attacgment if anyone is familiar with thses tickets.