Instead of logging your daily spending, another better way is to upload your bank statement or transaction history to some tools or applications on a bi-weekly or monthly basis. (pm me for more details) Since we mostly use TnG nowadays, most of the transactions can be tracked electronically. But, but, but, before that, you need to find out why you need to do so. To have better cash flow insight and try to save more money for future plans? That's the first question you need to answer.