I figured out a way to solve this for myself.  I could put together a simple piece of arduino code that would drive a stepper motor with a screw on the end.  This would be mounted to my big toe, so the screw would slowly drive itself under my toe nail and into the tip of the bone.  Of course the screw would not turn as long as I wrote a certain number of lines of code in the set amount of time.

Sadly I've been too lazy to build and code this motivational device. 

set a goal for yourself for example i'll code a program that lets me shutdown the computer, and i'll do it in today
and never leave your set things to tomorrow when the time cames do it, dont delay it
this thing doesnt apply  only for programming. as long as you work with a plan, you'lll do fine

auuuuuuuuu @Aprone.
That must fuuuucking hurt...

What usually happens to me during such periods is that I force myself to write a bit of code. Something that i had in my mind and thought it would be really cool and when I succeed, I get the motivation to work on it more and make it larger and larger. This happened to me a lot. I mean the time I forced myself to code was the time I was lazy as hell to code but had really cool ideas in my mind. So I better say you first have to find the idea of what you want to code, Play with it more in your mind and make it as cool as you want then proceed for coding that idea. You'll get the first motivation when you notiss you are coding your idea correctly, and you get that huge motivation when you see your code is working exactly as you want. The huge motivation causes more motivations for more coding and messing with your code.

regarding what Aprone wants to implement, i have to say, instead of a arduino board, i should install a crankshaft on my finger in order to make it code what i have in my mind.
as for the other suggestions, they are totally good, except that i don't know about how should get rid of that lazyness.

you might be right as well!.
lets say that, i want to write a simple game, when i think oops, it took for example more than a thousand lines of code, i say to myself, nope. don't do that.