I am a huge fan of enhanced leaf because a lot of the technical issues with smoking are completely eliminated for me with it. Mullien is real easy to smoke, and it can easily be made to 1:1, making breakthrough possible with not a whole lot of material.
If i am working with wax or xtals, then wax paper is really handy, and i usually store spice in little wax paper bindles. It can be dosed out that way in little parcels which are fairly easy to work with.
I don't have a gvg or use a machine, i usually use a chillum with it without screens and a regular lighter. Low-fi, i know.
Sine experientia nihil sufficienter sciri potest -Roger Bacon
*γνῶθι σεαυτόν*