Practice giving things away, not just things you don't care about, but things you do like. Remember, it is not the size of a gift, it is its quality and the amount of mental attachment you overcome that count. So don't bankrupt yourself on a momentary positive impulse, only to regret it later. Give thought to giving. Give small things, carefully, and observe the mental processes going along with the act of releasing the little thing you liked.
Tibetan Book of the Dead: Liberation Through Understanding in the Between (ed. Bantam, 2011) - ISBN: 9780307784025