Don't let a notary overcharge you.

Here's a helpful chart listing each state's fee(s):

https://www.nationalnotary.org/notary-bulletin/blog/2016/11/how-state-notary-fees-compare

Should a notary need to travel to you, expect a bill covering their time and mileage.  And if you're researching e-notaries, you may want to consult with your legal contact, first, as laws related to this online service vary by jurisdiction.