Set up simple bookkeeping for my new business

Help me set up simple bookkeeping for my new business from day one. Business type: [service / products / online / mixed] Structure and location: [e.g. "single-member LLC in Texas"] How money comes in: [card payments, bank transfers, marketplace payouts, cash] Main costs: [LIST] Tool I use or am considering: [spreadsheet, bookkeeping software - or "not sure"] Inventory? [YES/NO] Previous step (optional): [PASTE my setup checklist, so this builds on the bank and payment accounts I've opened] Give me: 1. A starter chart of accounts for my type of business: income, cost of goods sold (if relevant), and expense categories I'll actually use, each with an example. 2. Rules that keep the books clean: separate accounts, no personal spending on the business card, how to record owner contributions and draws, and how to handle mixed-use costs. 3. A receipt and document system: what to keep, how to name files, and how long records are generally kept (mark [CONFIRM] for my location). 4. A weekly 30-minute routine and a monthly close checklist (reconcile accounts, review unpaid invoices, check the profit and loss). 5. A tax set-aside plan: what percentage to move into a separate account with each payment, as a placeholder I confirm with an accountant, and a calendar of likely filing or estimated-payment deadlines to check. 6. The 5 numbers to look at each month and what each tells me. This is general information, not tax or accounting advice; have an accountant check the setup, especially sales tax and payroll.