Midnight exploit

This glitch allows you to get infinite massages from the Massage Girl in Veilstone City making your Pokémon happy much faster, which inturn makes friendship evolutions easier.

Procedure

1. Set your clock back 1 minute before midnight
2. Save your clock data and shut your DS off.
3. Start your game and go to the Massage Girl in Veilstone City.
4. Get a massage from the girl for any Pokémon. Then save and turn off your DS.
5. Repeat steps one through four and the girl in Veilstone will continue to give massages.