Today I read some archived message board posts on some other site about exhaling into a balloon during a session and breathing it back out and into the balloon repeatedly. Just a little while ago I took the bag from a bag of Wonder bread cheeseburger buns and ran it through a cap from those Baby Bottle Pop candies with the smallest reservoir tip kind of thing sawn off. The bag flowed from the smaller, sawn off opening, out of the larger end, where it would screw on to a baby's bottle if it were a real cap. I hate when someone can't give a good description of a homemade piece, so it looked like, it was the bag from the cheeseburger buns (empty now), with its opening held kind of tightly together, loosely open, with essentially a big plastic ring to hold it in a size fit for a human mouth.
I would take a hit from my pipe, exhale it into the bag, perhaps exhale the rest out of the window if my mouth were still full, and then inhale from the bag and exhale again and inhale and repeat that a couple of times until I assumed there was no smoke left or got the feeling I shouldn't spend too much time with stale smoke or needed oxygen instead.
I haven't really gotten "high" after a smoking session for a while now, mostly because I have been in stock for a long time and I smoke very often, probably 7-8 times a day sometimes, always at least 4-5. After using this bag, though, which I of course have nicknamed the Wonderbag, I was pretty high. I don't want to decorate it all up or anything, but yes I was pretty high. I think the bag made a difference, but I don't know how exactly.
This bag is only a prototype, I may procure (procure) some balloons tomorrow to see if it really makes all the difference. If it does, and this has been a known technique for some time, I'm surprised it isn't talked about/performed more often.
The purpose of this thread besides informing anyone who cares about this rough draft of the Wonderbag paraphernalia, is also to welcome any speaking that can be done about "advanced" or more effective, more experienced techniques for smoking or breathing, so that we may all learn and, of course, grow.