How do you finish your things early with good quality?

Well... I have been thinking a lot lately about this and sometimes i could do it and sometimes i couldn't even if i tried to. Then i had this idea of last minute rush thing, i.e. acting like you have to finish the thing in your hand within an hour. It works! All the ideas from this rush flow through my brain and certainly, I could visualize the fastest way(may not be the best) to finish it up.

The reason it doesn't work sometimes is that we couldn't create enough rush, thus ending up with same old pushing the nearly deadline thingy. It's not the new thing and also not that i just found out but i guess it would be nice to write it down somewhere else when i am in mood. That's pretty much it.