The easiest way to budget is just stop spending money on stupid stuff, and don&#x27;t live somewhere with high rent. Don&#x27;t make large purchases, except perhaps a condo or house so you don&#x27;t have to pay rent anymore. You don&#x27;t need to write anything down or manually keep track of stuff in an app. Your online account balances automatically keep track for you. This isn&#x27;t rocket science.