Ynab
I can't say enough about YNAB. It's a fabulous budgeting tool, vastly superior to any other tool I've tried. The entire paradigm of planning and spending is different with YNAB. It takes a slight bit of adjustment getting used to a new way of thinking about spending, but once you've made that mind switch, it's hard to imagine how any other financial tool could compare.
YNAB has a weakness in that it's not superb at tracking investments, retirement, etc.,. It's way more about spending within your means in a way that's not only painless but also enjoyable.