Screw down a sheet of melamine as a new workbench surface. You can write on it and it erases easily. Dried glue scrapes off, varnish spills don't stick and heavy projects slide on the slick surface for easy positioning
Garage Fold-down workbench - I've always wanted to do something like this in a kids' art/play room. This website also has a lot of great ideas for creating more storage in your garage. I look forward to using some of them if I ever have a garage.
Bench-Top Tool Storage Tip Build this slide-in base and mount the vise or tool on it so the entire unit can slide back in upside down and out of the way. Countersink holes into the underside of the base so you can recess the mounting nuts and washers.