So, I like overdrive/distortion/saturation/etc, and I’m kind of new to the hardware game. I’ve played guitar/bass my entire life, so I understand single-channel insert FX, and I’ve messed around with Ableton Live for years, so again, I understand inserts and FX send buses. However, now I’ve got some hardware including a mixer (with 2 sends), and I kind of want to dirty up my signal.
If I just wanted to dirty up a single channel, then yeah, I get how I’d just stick the effect in that chain, but how do I dirty up everything? My own logic tells me to just put an overdrive pedal (or whatever) on my master out(s), but first of all pedals are generally mono, but also I lose the ability to headphone monitor (which is usually how I jam) without more hardware (to amplify the signal for my headphones).
I’m trying not to justify buying an Analog Heat, I swear. 
edit: ideally this is something that’s easily portable for live performances/etc, also.