The Speed Test Trap Everyone runs a speed test, sees a drop, and blames the VPN. Often the real bottleneck is nothing to do with the tunnel protocol. Before you switch providers, work through the usual suspects in order. 1.…
Why Route Everything? By default a VPN sends all your traffic through the tunnel. That is simple and secure, but it costs you speed, bandwidth, and battery, and it can break local services like a printer or a smart home…
eSIMs Are Safer, but Not Automatic An eSIM removes the risk of losing a physical card and makes your data profile harder to clone, but the phone around it still needs the same hygiene you would use at home. This…
The Repetition Problem Chat applications resend the system prompt, tool definitions, and conversation history on every turn. In a typical session that static prefix can be 80 percent of the tokens you pay for. Prompt caching lets the provider skip…
The Gap in Most VPN Setups A VPN protects you only while the tunnel is up. If the connection drops for two seconds on an airport network, apps quietly fall back to the raw connection and your traffic goes out…
Why Everyone Overbuys Most travelers pick a data plan by guessing. The result is either a 10 GB bundle with 8 GB left over at the airport, or a 3 GB plan that runs dry on day three of a…
Practical tips to keep your API spending predictable and under control.
Seven concrete tactics that reduce your bill without hurting quality.