Hashibirokou

i really like the payday/pickup meowth vs smeargle shunting in the artisian cave (100% encounter rate) technique. the paydayed smeargles are about $500 each, they drop silk scarfs ($2000) and energy roots ($3000), and if you catch the illusive shiny smeargle it's worth a few million. if you can breed desirable mons for as little overhead as possible they can just be sold on GTL for fantastic profits.