Cloud providers are businesses first. While their documentation is extensive, there are a few "unspoken truths" that architects learn the hard way. Here are three secrets to help you optimize your setup: 1. The "Default Settings" Tax

Set up strict auto-scaling policies and "kill switches" for dev/test environments. A managed database running 24/7 for a 9-to-5 project is a silent budget killer.

Providers use egress fees as a form of "data gravity" to make it difficult for you to leave or adopt a multi-cloud strategy.

Many default storage tiers (like AWS S3 Standard) or compute instances are overkill for most workloads.

Always audit default settings. Switching to "Infrequent Access" tiers or right-sizing your CPU/RAM during setup can instantly cut your bill by 20–30%. 2. The Egress Trap

Moving data into the cloud is almost always free, but moving it out (egress) or even between regions can be prohibitively expensive.

A managed service is often just a specific virtual machine with a markup. You are paying for the automation, but the provider won't automatically scale you down when traffic drops unless you configure it yourself.

Use Content Delivery Networks (CDNs) to cache data closer to users and keep as much traffic as possible within a single availability zone or region to avoid "inter-zone" transfer fees. 3. "Managed" Doesn't Mean "Optimized"