Ziplock bag sets? I remember them from the beginning of the eighties while sifting through the shelves of game stores. Cheaply printed booklets and sheets, in a dull, vaguely-transparent plastic sheath, usually with a dot-matrix printer sticker explaining the contents. Good lord, what a beautiful thing!
I love Gabor Lux's adventures for the Wilderlands and Fomalhaut; I love what has been translated (or I have translated myself) of the rules for his 3E/retro-clone hybrid Kard & Magica (Sword & Magic in English...but I prefer Kard & Magica!); I want them all, in digest-booklet form, with Gabor Lux generated artwork, in a greasy zip-lock set with a dot-matrix printer label!