I buy a regular amount of petrol each tuesday, for some reason buying $30 a week is cheaper than actually using up the tank and refilling it... haven't work out why yet LOL.. but it stays within budget this way. I do need to remind DH tho when he gets fuel not to fill up.. just to get the $30.
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Yes, do the same here and it really helps. Took awhile, but now DH will ask how much to put in. Before he would just fill her up and expect me to have the money for it, often it would result in us having no money for milk etc. I do get angry now if he uses my fuel for the week on the weekend for something trivial.