This is an amazing job made by Paul Weber: over 300 printable cards in one free PDF, the cards contain all the basic equipment, gear, anditems from the Official D&D Player’s Handbook as well as vehicles, food, mounted equipment, weapons, armor, and a few homebrew items.
Download the entire zip (242MB) : http://bit.ly/DnDEquipCards
or download single cards layout: http://bit.ly/EquipCardsDnD