You can get the card after you complete the "Twisted Wizard" game and Greg gives you the game to return to Rowley. Then go to Rowley's house, talk to Rowley through the window, then go jump on his dad's car. Run quickly to the bush on the left side of the door and click "Hide" Then click on the open door before Rowley's dad returns. (You may have to do this twice.) Once you have successfully sneaked inside, Rowley will give you a "Joshie" card as a thank-you. Use it to open the laundry room door. (Make sure you turn off Rodrick's power while you are there.)
you have to get the membership card from rowly and go in the laundry room and click rodricks room
It's used to open the laundry room in Greg's house
you turn off the power in the laundry room.
You get the card Rowel gave you and go to Greg's house. Then, you use the card to unlock the laundry room door and turn the power off in Rodrick's room.
You return Rowley's CD, and he gives you a membership card that you use to unlock the laundry room door, and you click on the fuse box, and click on Rodrick's room, and he leaves.
you have to get rowlys joshie membership card and that's how you open it ( !)
Once you get the Joshie Card, you can put it in the slot to open the Laundry Room.
If you have the credit card you can open the Heffley's laundry room and turn off the basement electricity. Rodrick will leave the house. Now you can get in the garage. Take the leaf blower and use it on Fregley.
Use it to open the laundry room door at Gregs house.
The laundry!
You have to get the Joshie Club Membership Card from Rowely then use it on the door.
you open the laundry room door with it in Greg's house.