Strapped for cash? Grab your lantern and head on over to Kakariko Graveyard. There you will see two unlit torches. Take out that Lantern (it needs to have some oil left in it) and light the torches. A chest will appear with 50 rupees. Still not enough? Then push both of the pushable gravestones. One will have a yellow rupee piece, which accounts for 10 rupees. Enjoy!