Create a peak productivity environment

Have little things in your environment that trigger positive, productive responses.
Examples
 - To mentally attract wealth, have things that represent wealth.
 - If you are concerned with time, have clocks around you.
 - Etc.

Be between the extremes of having a desk full of clutter and a neat desk.
A "semi-organized" environment can be helpful. 
 - Creative, innovative thinking seems to come out of chaos more often than from neat desks.
 - Successful implementation of innovative ideas seems to come about in a most organized, disciplined way.

If you seriously doubt you will need or use a paper again, go ahead and throw it out immediately.
Many people are compulsive keepers. Be extremely ruthless to paper.

Organize your desk in a way so that you don't have to get up too often.