Keeping funds separate

[Adam Weisenburger]

I just got an offer accepted on my first Single Family House which I plan to house hack. I ran the numbers through the BP calculators prior to making an offer and everything looks great. I'm wondering what tools or tricks you all employ to keep track of how much is in your "Repairs/maintenance" fund vs your "Vacancy" fund or "Cap Ex" fund. Do you have separate savings accounts for all of those categories? Or how do you keep these funds properly earmarked?