I've been security-aware for quite some time now. Problem is, I think I've reached my limits, despite being told that enough is never enough. (and for me, it isn't)
So, here's my personal arsenal as of right now:
OpenBSD. Use it to access E-Mail, IRC, XMPP, etc. All through TMUX, Xenocara isn't installed. Installed on a P4 (no intel ME). E-Mail is encrypted using GnuPG. XMPP is encrypted using OTR. IRC comms for things like #chat are done over plaintext+SSL. pf is considered reasonably. I use DNSCrypt.
My router. runs fully foss/non-blobbed firmware. I use it as a hardware firewall. Uses WPA2/PSK. Very strong password, obviously.
My "alt-machine"
Runs Debian Sid, uses GrSecurity, hardened sysctl values, generally lots of auditing and security software installed, rkhunter, debsums... etc. Does have XOrg, only purpose is the use of the Tor Browser to view websites Anonymously. I usually use this machine to read the news, check the forecast, and shitpost.
My "main machine"
Debian GNU/Linux. Due to it running stretch, I cannot use GrSec without compiling the kernel. I've made a compromise here and decided to use apparmor instead.
It uses the Pale Moon web browser, with uBlock Origin, HTTPs Everywhere, Self Destructing Cookies, along with Greasemonkey installed. I also use "user.js hardening stuff", not sure of the exact name of the repo. This machine also shares sysctl values with the "alt-machine". It's also filled with auditing software like debsums.
Like the other machines, all DNS queries go through a log-free OpenNIC+DNSCrypt server. All my traffic is forced HTTPs, all HTTP traffic is dropped at the hardware level. I constantly monitor and audit all of these systems for anything suspicious, and maintain them all.
How do you think I could expand upon my personal security hobby, Sup Forums?