It is a pathetic habit but most of us to try to be considerate and keep out patheticness (is that a word? It is now!) to ourselves! There are plenty of designated smoking areas throughout IOA/USO and are clearly marked on the guide maps. Having just got back a month ago, here are the ones I remember
IOA (going clockwise!)
Marvel Super Hero Island - seating area opposite the Comic Book Store
Toon Lagoon - to the right of the bridge at Dudley Do Right
Jurassic Park - just in front of the drop zone for Jurassic Falls
Walkway between Jurassic Park and Lost Continent
Lost Continent - Can't remember but I know I needed a puff after Duelling Dragons so there must be one there somewhere!
Seuss Landing - Again can't remember but then DD (12) considers herself too old for Cat in the Hat now - darn! So we rushed thru.
Port of Entry - seating area by the lagoon.
USO (clockwise again - is there a pattern here?!)
Near Nickelodeon Studios at the side of the shop
The "garden" area outside Twister
The bar area opposite Earthquake
To the right of the MIB shop
The seating area by the Lake near Animal Live
Gazebo area near Barney Live
There are probably a couple more which I didn't stop at due to family pressure!
At CityWalk, you can smoke on the verandah of Margueritaville and Pat O'Briens has an outdoor patio where us "lepers" can hang out (except when it's pouring down - I speak from experience!). Those are the only 2 places we've eaten.
It's been 2 years since I stayed at HRH and smoking was allowed by the pool then. Don't know what the rules are now, sorry.
Hope this helps some. Maybe by the time we go back in August, I'll have kicked the pathetic habit and won't need to remember all this (yeah - right!)
Have a great trip!