I tested a 7-year-old laptop. Now I’m questioning PC upgrade cycles

PC makers use comparisons to older PCs to convince you to buy a new one. But is it really necessary? I went through some real-world tests of old and new PCs to see if you really need to buy a new PC - ...
How-To Geek on MSN

Your shared Excel spreadsheets are fragile—here's the defense system I use

Build resilient Excel workbooks using interface design, data restrictions, and protection layers that reduce collaborator ...