Anyone have thoughts or experience with this? / Why: my business is extremely seasonal and the income and expenses happen at different times in the year (i.e. summer is when I need to buy a lot of materials - gold! - to make inventory for the fall but summer is not when I move a lot of product... in the fall I have a lot of sales but I've already bought materials and paid vendor fees so I have relatively few expenses). I use a cash flow spreadsheet (and Quickbooks) that has the info from 2017 and 2018 so I have some data to look back on but I'd love to learn more about best practices specifically when dealing with seasonality.