- Several states/counties/cities/etc add a surcharge for credit card payments or transaction/processing fees for things like vehicle registration, paying traffic tickets, obtaining court records, paying property tax, etc.
- Prisons and jails are really terrible with junk fees for both the prisoners and for systems set up for their friends/families to call or message them, send them food/sundries, etc. They also promote a system where you deposit funds in even chunks of $10, $20, $30, etc...then they keep the uneven remainder when you're no longer using their system.