1. Want to swim freely between MS office and Latex?

Office2Latex or Latex2Office

Comments: What I care mostly is how to convert excel table to latex table, so here is how:

2. Want to convert different picture formats (jpg, pdf, eps...)?

3. Want to draw/generate pictures?

4. Want to use latex file to make Microsoft Powerpoint?

5. One sentence tips about unix/linux/mac.