I also use regular household light bulbs for heat. And if I have a ddiurnal animal that needs UVA and UVB, I put a flourescent UVB bulb over the cage. But I still use regular lightbulbs for the heat. It's much cheaper. It's ridiculous, in my opinion, to spend $10 on an incandescent light for heat.
"He is your friend, your partner, your defender, your dog. You are his life, his love, his leader.
He will be yours, faithful and true to the last beat of his heart. You owe it to him to be worthy of such devotion."-Unknown