Maybe a bit basic but at the beginning of every month I clone this Google Sheets template, set goals in each category, and manually log receipts as I spend. Then at the end of the month, I “audit” my budget against my credit card transactions, pay off credit, and create the next month’s budget with any adjustments learned from the previous one.

For bigger view, long-term, I just linked all my accounts into Quicken and look at it sometimes.