I sometimes like to relax and watch TV or a movie with the family while modeling.
I was at Walmart last week and in the clearance section I found a rectangular 18in x 14in with 2 in sloped sides melamine food serving tray.
Its big and sturdy enough that I can get model parts and tools/supplies and confine them to an area where they will not be lost, damaged, etc. Any spills or sanding dust are confined to the tray which can easily be cleaned.
The worst part is that it has an AWFUL fish design on it!
The best part is it was $2!!!
They also had a smaller one made of that soft plastic you find in cheap cups, bowls, plates, etc. I believe I will return and pick up one of these too. It was even cheaper at $1.