Cash
Srimad-Bhagavatam
SB Canto 7
SB 7.15.22, Purport:
If one is determined not to be envious of anyone, he can naturally conquer anger. Similarly, one can give up the desire to accumulate wealth simply by considering how difficult it is to protect the money in one's possession. If one keeps a large amount of cash with him, he is always anxious about keeping it properly. Thus if one discusses the disadvantages of accumulating wealth, he can naturally give up business without difficulty.