You are correct JJG, the right thing to do is to always account for your expenses for that week or month and it should be based if you receive salary weekly or monthly and it should be within that space that you receive salary, sometimes you may get paid and immediately you start spending and you may even forget the most essential things needed so it is advised that before the due date that you will receive your salary you write down the things you need to spend the money on and how much will be lift from your salary as your discretionary income, any other emergency expenses that comes later you can use your reserve funds to settle it and that is why it is very important to have your backup funds which are
This is actually a good way to get your discretionary funds before month or week end that someone will receive salary or wages that is if their payment is constant and doesn't vary because of it does vary you can not be able to determine how much to allocate to some certain needs or want but on the other hand doing this because one can easily forget their needs doesn't make any sense because I wonder what will make someone forget his needs unless the person doesn't know what scale of preference is all about. A wise investor will never forget his needs whenever money comes in because he knows what will be the consequences or the damage it can cause or create of they forgot.
It doesn't mean if your salary varies, the most important thing is that you should sort out your needs and expenses first for that week and any leftover should be used be to invest into bitcoin. You should also know that our weekly needs and expenses also varies from week to qeek, because there are times that we will spend more on our basic needs and weekly expenses and sometimes, we will spend lesser.
Any time that your discretionary income is high, you invest higher and any time that's is small due to high weekly needs, we invest smaller amounts. Therefore, if your weekly/monthly incomes varies, you should be able to figure out how much is your discretionary income and buy according to that amount. The most important thing is that you should kewp your bitcoin accumulation ongoing for 4-10 years and above regardless of the amount of your discretionary income, because we are to always work on improving our income for a higher discretionary income in order for you to increase your DCA amount.
It's good to have float, float should be use to take care of an unexpected expenses during the week.