Cloud makes it easy to deploy stuff, even just to test it, but that is also what can slowly make your bill bigger than it needs to be. I finally just added a reminder task every six months to go through and look at what I had been using.
Some tips I've found helpful to avoid higher bills
Set a reminder every few months to review your service usage
If you know you are creating something only needed for a few weeks - when you create it put a reminder to delete or turn off that specific item
Consider using some automation for things that don't need to run 24x7
You could even use the Cloud service to automate shutting things down
Use good names - nothing is worse than looking back in 6 months and not remembering what the default "A73C562D34" was