Yep, I always use blue tape for my prints since I discovered it 
I think it is the best option. I've also tried with hair spray and glue stick but I had worse results and it is not as clean as blue tape.
I am going to try a DIY with a Silicon Rubber Heater. I built a simple temperature controller with a comparator and a LM35. I will post the results as soon I finish it
Regards,
Jose.