Hi, Steve,
I use the wax paper pretty much as kmmcrafts described.
Just a very thin layer of glue which I spread out with a scrap of wood from
the cutting and then weight the project down until the glue dries,
Normally it is dry enough to take the weight off within 3 hours,
This works great for intarsia as well and gives enough time to re-align any
pieces that seem to want to shift while they are being glued on the edges of
individual pieces.
If the layered projects you are doing have several different heights, you could
also use bits of scrap laid on the lower levels so you have a top layer all the same
level before placing much weight on it. I usually just grab a case of pop for weight but,
heavy books like encyclopedias work well also.
Good luck and God Bless! Spirithorse