The most difficult part is keep the energy, the passion to continue pain-in-the-ass undertaking. I am unfortunate to lack the skills in storing the electricity of inspiration, and the thing is there is no guaranteed way to improve on that. It will take a strong will to reach the end of a once interesting piece of work.
And to the lucky few who are able to accumulate excessive amount of inspirations and channel it, get out.
PS.
I was inspired to assemble my first computer. The last 2 desktops I have went puff. Here is my Intel D945GCLF2.