I've been using a spreadsheet for about 20 years and occasionally I'll be curious enough to try something else but I always come back to the humble spreadsheet,

I've been using a spreadsheet for about 20 years and occasionally I'll be curious enough to try something else but I always come back to the humble spreadsheet, plus a script to massage the CSV export from my bank. Though it's not fully automated, it's close enough, it provides unlimited flexibility (every other system I've tried eventually gets in my way a little too much), and the price ($0) is just right.