For a year or two i used to manually track all weekly spend, to help stick to a budget. No software involved, just noting spend on a paper spreadsheet at the end of each day, & summing up weekly totals. I don't do this any more, instead just periodically review expenses (using logs from bank transactions) and have a think if I need to make any adjustments in habits or shop around for better deals for utilities, insurance, etc. I still track ratio of savings to income net tax, but it's only worth calculating this once or twice a year or when thinking about decisions with a large financial impact (moving house, changing job, etc...)

Quite a few years ago when i was trying to build a habit of getting more exercise i had a calendar & i'd mark the days where i'd cycled/jogged/swum, and perhaps the number of laps. Again, low-tech physical paper calendar + a marker, sitting somewhere where I'd be forced to notice it. It helped build habits.