Kris, I use a variety depending on a few factors, mostly the size of the pattern.
Generally:
* Large Patterns - GLAD's Press & Seal - Buy it in grocery store. You need small wall paper roller 4" (four inch)
Pull off what you need, lay it on wood and roll until bubbles are out. It's quick...
It's good because it is see-thru, sticks about like blue painters tape, maybe not as much.
I trim the extra off with Exacto.
On fret work since it is see-thru, you have to make sure it all comes off when you are done.
*Medium Patterns - Blue Painters Tape ... sometimes Glad P&S
* Small Patterns - Usually nothing, just use spray glue and clean it off with mineral spirits
* Hot glue on stack cuts but have used double sided tape *Hot glue and tape may also peel top layer, so plan accordingly.
Hey, I also use glue sticks on the little ones.
Hope this helps.