I do the same except I don't use prepaid electricity. But it's very Annoying and adding to my stress and don't enjoy doing the weekly money goalI buy:
Prepaid electricity in multiple small units and breakdown my other municipal bills into small units.
Airtime in small units
Fuel my car multiple times, at least the petrol station is conveniently placed on my way to work
Breakup my grocery shopping
im thinking the stress is no longer worth it as well. Yes the miles multiplyer was awesome



