Changing the default font of a document at MS Word 2010

1. Click on the expansion sign beside the Font panel on your tool bar.
2. Choose your favorite font for this document and click OK for the changes to effect JUST this document, or Save it as default, for the changes to apply to all future documents.
   
   

How to make a picture background transparent in GIMP

1. Open the file
2. Layer -> Transparency -> Add Alpha channel
3. Choose Fuzzy Selector and try to remove the area you want to make transparent by selecting it and pressing DELETE button on keyboard or through the menu by clicking Edit -> Clear.
4. Your image now is transparent in those areas that you have taken away.