Every solo business runs on single points of failure — things that only work because you do them, know them, or own them. Most owners under-count their SPOFs by half. Here's the systematic audit and the fix.
A SPOF is anything where the loss of one person, one tool, or one relationship halts the business. For most solo owners, the biggest SPOFs are: (1) your phone number being the only way to reach you, (2) login credentials living in one head, (3) vendor relationships that exist only with you, (4) recurring tasks nobody else has done. Audit and fix in that order.
The 'hit by a bus' framing makes this concrete. Walk through your business asking: if I were unreachable for 30 days, what specifically breaks?
Tenants/clients have your cell. Nothing else. Fix: a routing number that's NOT your cell.
Bank logins, software accounts, domain registrar — all in your password manager only. Fix: a designated 'in case of bus' password vault, sealed envelope at home, or family-member access.
Your plumber, electrician, attorney all know YOU. They don't know your business or backup contact. Fix: introduce your designated decision-maker to your top vendors before you need them to.
The spreadsheet that does the magic. The process nobody's documented. Fix: 30-minute Looms of you doing the recurring stuff. Even rough docs beat undocumented entirely.
You know the lease history, the dispute that almost happened, the fact that this client is sensitive about X. Fix: short notes per client/tenant, kept in a CRM or shared doc.
Don't try to fix everything. Fix in this order:
You don't need zero SPOFs. You need the top 3–5 fixed and the rest documented enough that someone could pick up the pieces given a week.
Owners who try to remove every SPOF end up paralyzed. Owners who fix the top 3 hit operational diminishing returns and can usually take a week off without panicking.
Routing is the highest-value SPOF removal for solo businesses. 14 days free.
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