I want to pay for some of my online purchases with cryptocurrency, but I don't know how to control the exchange rate so that I don't get cheated and overpay.

The website https://minfin.com.ua/currency/crypto/ helped me with this. There, you can quickly check the current exchange rate of a specific cryptocurrency and even see changes over the last few days or weeks. At first, I used this service before every purchase — it gave me confidence that I was exchanging or spending my money profitably. In addition, the resource helps to compare the rates of different exchanges, which is especially convenient for those who want to make purchases regularly. Thanks to this approach, I learned to plan my expenses more calmly, and using cryptocurrency ceased to be a stressful experience.