I want to thank everyone for the responses. I had hoped to generate a
discussion but had not anticipated such a divergence of opinion. My overall
impression is that my actions may have some merit as long as my dryer use is
not excessive. We probably do a couple of loads every other day. Of course I
considered safety issues before diverting the vent indoors and decided it
posed no threat since the dryer is no more than a large electric heater with
a blower fan. My plan is to try it for a while and keep a close eye on
things. If the indoor humidity becomes excessive or lint becomes a problem,
I can simply reattach the hose to the pipe venting outdoors. I plan to do
this in any event as soon as the weather warms up and it is my hope is that
winter does not linger for long here on the US eastern seaboard.

Also, thank you all for the suggestion on alternate ways to dry clothes as
well as other energy saving tips. Unfortunetly I am stuck with what I have
right now and will try to make the best of it. Sooner or later I know I will
need to replace my dryer and I will need to decide whether gas or electric
dryers are more efficent and cost effective at that time. I suppose I will
cross that bridge when I get to it. Thanks again.