Today, go into your bedroom and see what pleases you and what doesn't.
Are there things in there which don't belong? Figure out where they can move instead. If they can go nowhere else (hello, studio apartment dwellers!) could they be contained or disguised in a way to make them bother you less?
Are there things missing, for example, enough dresser space or a rug by the bed to shield your morning toes from a cold floor? Make a list and, if you have something on it which matters more to you in the bedroom then where it currently is, move it in right now.
Would a different layout make you more comfortable and work better? Thinking about the morning light can be helpful here.
For those with larger places to live, are you even using the right room for your bedroom? If another room might be better, play with the idea on paper and make some measurements before you start moving furniture. Trust me on this one.
At the least, find one thing you can do today which will make you happier in your bedroom from now on.