Don't forget about preemptive security freezes at credit bureaus, which you have to do for each one individually. /r/personalfinance recommends 7 by default [0], but there are many more [1].

[0]: https://www.reddit.com/r/personalfinance/wiki/identity_theft...

[1]: https://files.consumerfinance.gov/f/documents/cfpb_consumer-...