1. Smoke in a location you usually do not smoke in.
-Before you smoke at you "usual spot" your body recognizes that you are about to smoke and builds up a tolerance to the marijuana. Take yourself out of your normal spot and your body does not build up the learned tolerance.
2. Take aspirin before you smoke.
-Marijuana is highly lipid soluble (can pass through the fat around your cells, the cell membrane, easily). It is so easily crossable that it actually picks up proteins as it crosses the cell membrane and gets stuck in your fat. But, there is only so much proteins to get stuck to. Apsirin is as lipid soluble as marijuana. So you take aspirin first, they get stuck to most of the proteins first, freeing up the marijuana to cross the cell membrane protein free.
Enjoy