Microsoft Wireless Mouse stops working

It's always interference for me. Today it stopped working after several weeks of problem free behavior. Try putting the receiver somewhere else. It solved the problem for me.

Split a long audio mp3 file into smaller parts

I had a several hours long audiobook file and it was cumbersome to handle it with my mp3 player, because it had only rudimentary controls for moving in the file. So I wanted to split it into smaller parts and as it turned out it's quite easy. The file can simply cut into pieces, no complicated trickery is needed. I used Total Commander to split the file and it worked beautifully. Try it yourself.