Cancel austar/foxtel if you have it.

Shop for food once a month. (except f&v & bread etc). We do this. We plan our meals a month in advance. Check pantry & freezers first to use up items. Plan to have meals with similar ingredients close together to avoid wastage. This is not set in stone and can be flexible. It has taken a while but now it takes only a short time. We can choose healthy meals and then we know what we are having each night so rarely ever have takeaway. We cook extra rice/pasta and have leftovers for a bit of variety for lunch. From our meal plan, I do up a shopping list for meat (from bulk butcher), aldi & woolies (I check for specials on the week I go shopping for things we often buy. Other weeks I do not read the catalogues so I'm not tempted to go in) A few shopping trips comparing prices will give a good idea of who has the cheapest prices. I shop to the lists. No impulse buys allowed unless it is something that should have been on the list (as in I forgot to put cereal on the list no I forgot to put chocolate biscuits down ) We don't buy packet mix anything, & make everything from scratch. We go f&v shopping about once a week as needed. We buy the milk that is $2 for 2L, and bread that is $1.60 a loaf. It is not the best bread but it does the job. DH buys a whole rump from IGA and from that we can get quite a few meals depending on how it's cut. DH usually does a roast, some stir-fry strips, steak or mince. It's often on special for about $5 a kg. Pack f&v to best avoid wastage as soon as possible. By this I mean putting things that wilt quickly like carrots/celery etc in air tight containers so they last longer etc.

I don't know if you drink or smoke but it goes without saying if you do - stop or cut back on drinking/smoking.

Try to avoid the shops as much as possible. Do NOT go to the shops to "browse". IRL or online. Just don't do it. Cancel any subscriptions to emails from sites that offer deals - groupon, daily deals etc to avoid the temptation. Cancel emails from stores. You won't miss it if you don't know about it. Make a pledge to go a year without buying new clothes/shoes/homewares unless absolutely necessary.

Do you have more than one car? Can you get by with just one? I know it's not always possible but may be doable if you have access to public transport.