Help! Is my CBT progress a problem?

I am confused now. It seems I am making progress with cognitive behaviour therapy but it is now causing me concern. Last night I went out for dinner and was quite relaxed before leaving the house. I did not feel such compulsion to check and just had a quick look around and did the obvious like shut the window, switch the heating off and lock the door. On my return I noticed that I did not unplug the TV or switch on the answer machine. The answer machine is not really important but what about the TV? Does conquering my OCD mean that I will be more likely to cause a disaster? Or is this just the OCD talking? I know people without OCD don't feel the need to check but if they return home and realise they left something on does this matter to them? Probably not. It just makes me think oh heck I should check. My rational mind though tells me that this is typical OCD thinking and that it's not a big deal. Do you know what I mean? Am I right? I hope I can continue to make progress and this won't set me back...