This is more of an informative post and a post to thanks OZB community.
I just did some basic analysis on the purchases made through cash rewards in last 2 years. On average I have received around 3% cash back on 40K spent (work and personal) via cash rewards.
Thats more than 1200 dollars in my bank account which wouldn't have been possible otherwise.
On top of that, credit card points are worth 1-1.5% cash back (Assuming worst case scenario, when you use Qantas/Virgin points to buy Myer gift card)
I learnt most of this via this community. So thanks!
Yeah i'm at about $2500, a lot of it from Dan Murphys, Ebay, and heaaaaaaaaaaps from Expedia for work trips