Recommendations for the weekend

Hello, I hope this is OK to post here.

I'm visiting Tokyo from the Inaka this weekend, and I have a few things I'd like to take care of, would anyone give me any recommendations for stores or places to go for this? Thank you very much in advance!

1. I have an American Asus laptop that someone spilled coffee on. Our local repair service couldn't get it working, and I wonder, before I ship it off to Asus and pay them to fix it, if there isn't a good PC repair place in Tokyo I could try first.

2. I'm hunting for some American/European toiletries, soaps, etc. Is there a store somewhere in Tokyo that carries these types of foreign goods?

3. My beloved 50 inch TV has suddenly decided to retire, and so I need a replacement. I'm sure there's a bunch of places in Akihabara and elsewhere I could go to to get a used TV for cheap, but I thought I'd ask if anyone here has a shop recommendation, a place where you found the service and quality to be worth supporting. I'm interested in supporting local businesses, so I'm hoping to avoid the big chains like book/hard off or 2nd street.

Thank you again!