A single router in Southern Arkansas grounded air travel — a reminder that one network point can cascade into huge disruption. For freelancers and small ops this is practical: what redundancy do you run? Think specifics: do you keep a $50/month LTE backup, mirrored VPS in two regions, or offline invoicing templates? Share exact setups (providers, cost, failover time) that kept you working during outages and what you'd recommend for someone billing $2–5K/month.