Parchment Paper

Found near the aluminum foil and plastic wrap in the grocery store, parchment paper is similar to waxed paper, but is impregnated with silicone instead of wax. Many painters use it as the mixing surface of their wet palettes, and it's usually better than the paper made specifically for that purpose, however, it's also handy as a non-stick surface for gluing. You can lay out a sheet of parchment paper on a flat surface (usually your table, but I find it's nice to use a piece of pink foam, so I can move it out of the way to dry, and use thumbtacks to pin the parchment paper to the foam) and use it as a base to glue up assemblies, without worrying about any glue that leaked out sticking your parts to the table.

This is especially handy for gluing balsa or basswood parts- if you're using a layout template, you can tape the template down to a piece of pink foam, then tack a piece of parchment paper over your template. The paper is translucent enough to see your template through it, but your parts won't stick to it.

Be careful when gluing plastics with solvent type glues! Even though your glued parts won't stick to the paper, the glue will still dissolve the plastic it comes into contact with. If the glue seeps under your part, capillary action will wick it all over the underside, most likely ruining the surface of your parts.

Be aware, though, that there will be some sticking. The paper is impregnated with silicone, not coated with it, so there will be some paper fibers at the surface. However, I've found that usually this isn't a problem, and if your parts do stick a little, they usually peel off very easily. while solvent based glues which weld plastic together won't stick, it will still dissolve the surface of your part resting on the silicone, so you still need to be careful with how much glue you apply.)