If you enter Kassey's house when one of them is there you can sometimes play a mini-game that is similar to Chinese checkers.
In Chapter 2, go to Nina's grave at 6:30 a.m. and talk to Garen. You can play the tombstone washer mini-game.
Buy a Seed Mixer and put in any of the fruit from tree crops. Sell the seeds instead of the fruit to make lots more money. For example, grapes sell for about 35 G each but the seeds are worth 450 G each.
Around the middle of Chapters 1, 2 or 3 you can buy a Seed Maker. Get at least one tree seed from Vesta Farm and plant it in your fields. The most fertile place would be a good location. After the tree has grown, flowers and, makes fruit, take the grown fruit and put it in the Seed Maker. Leave it for three games days. When you return, the Seed Maker will have seeds. Sell the seeds to Van to get a large amount of money. You can also do this to other vegetables and fruits and not have to buy seeds from the farm, which will cut back on the seeds that you buy every season. The Seed Maker will give you two seeds for every vegetable or fruit you put in. For example, if you put one peach in the Seed Maker you will get two peach seeds. Note: You can put a total of twelve vegetables or fruit in the Seed Maker.
This trick requires the Ruby Spice from Ruby. Go to your kitchen and choose any type of food (salad, soup, desserts) and use only one Ruby Spice. You will get another Ruby Spice. Repeat this process until you have 99 of them. Remember to keep one somewhere so you can keep doing this. Each Ruby Spice can be sold for 100 G.
Select the "Diary" option and choose to go to sleep. Save the game when asked, then reset the GameCube. Load that saved game file to resume just before the time you went to sleep, but fully rested.
Note: This trick only works for a hatching chicken. Do not save the game until you get the gender of chicken that you want. After the chick hatches, reset or turn off the Gamecube. The chick might change to male or female. Note: This may require a few attempts.
If it is raining or there is a hurricane, enter the mine and dig. After you are done, the rain or hurricane will be over. Also, keep turning your television on and off while on the weather channel. Stop when the weather that you want appears.
Befriend Romona. Somewhere in Chapter 2 and up, Romona will come to your house and let you name and have it.
Bring your son to the place where you link. Put it on the right side on the shadow and it will freeze. You cannot pick it up or do anything else. It can still move normally as if you were pressing X, but it cannot walk around and you cannot pick it up. Your wife will have to pick it up when it is its bedtime so you do not have to worry losing it. It will also return to normal if you reset.