Alternative for lack of a better word�meaning an alternative to the
expensive products made for the purpose, that I have to order and
can't get more of if I run out.

Over the years I have heard people refer to a peel and stick
asphalt-based product they got at the home stores. I was poking around
today and found various sizes of rolls of peel and stick flashing. I
was not impressed with how thin it was.

Is this what people are using? Is there another product I should be
looking for? Is it just not worth it, and I should be ordering the
real deal?

Those with opinions, please share.

Jim