I record daily spending activity and often add comments against the transactions, e.g if it is a restaurant bill, I will include who was with me and if it was extra-ordinarily good or bad then I will add a comment about that as well.

I developed an app installed on my phone which automatically detects SMSs transaction notifications and uploads them to my online app which is a simple General Ledger with simple and good enough reporting capabilities.

For cash payments (less than 10% of my transactions) the same app allows me to quickly take a picture of whatever I was buying or the receipt and uploads it to the online app for later posting. I even have a Google Cloud Run job which reads email notifications since some of my cards don't have SMSs notifications. I have been doing this since 2015 and it has been one of the greatest decision I have ever made.