Ask a writer what the hardest part of writing a book is and you know what hell say?

No, not starting...

Stopping.

I have the same feeling whenever I write one of my books. Im always wondering if I havent forgotten something or whether I could give another example or if I could express what I want to say a little more clearly. Long after Ive finished writing, Ill be tweaking and editing and adding and who knows what else until I finally decide its time to put it out there.

But with a book, once the work is done, its done... until the next edition.

With AdSense, the work is never done.

I think Ive got my sites pretty well optimized. It took me a long time and a lot of work to get there but theyre now bringing in a pretty impressive CTR and a good income.

And yet, I still want to play with them. I just cant help but wonder if a little tweak here or a change there would nudge up my CTR an extra half a percentage point and give me a nice little bonus.

Whenever the urge gets too strong, Ive really got two choices.

I can either sit on my hands until the urge passes so that I dont mess up a good thing.

Or I can try out my ideas somewhere they wont do my income any harm if they dont work. I use a small site for that but you could also use a single web page, provided you used Channels to keep track of the income that page usually brings in and follow the difference.

Not all of the experiments you run are going to work, but I have to say, theres only one thing that beats coming up with an idea, implementing it and seeing it push up your income.

And thats having a site thats so well optimized it cant produce any more income whatever you do. The only thing better than having one of those, is knowing it.

Anyone think theyve got one?