Make your sim be romantic/friendly to Bernie until you can ask him to move in. When you do, his house will be unoccupied. Since it is, and it's fully furnished, you can hang out there, and eat for free. All you have to do is: when you reach the front door, and tap inside, it will tell you the door is locked. Tap the lawn behind the back door. The front door will open and your sim will be inside! You can even throw a party, just don't invite Bernie over. (He seems to think it's still his house.)
Pause gameplay and go to 'Help & About' and select 'Gardening Tips'. Shake your iphone when the 'Gardening Tips' information appears and you will gain 500 simoleons. This will work twice, just exit the 'Help & About' screen and repeat.
Drag electronics and other things which have broken that need fixing into the trashcan which is located in the front yard. If you then buy new ones and replace them accordingly within the allotted amount of time you will earn one point.
To gain a cooking skill point you must first successfully finish the cooking tutorial which requires that you keep the pots cooking without allowing them to boil over. This can be done by touching a pot to select it and then shaking the iPhone to keep the heat down and stir the pot. If you do this enough times in the allotted amount of time you will earn one point.