|Material:||picture frames, small boxes|
|Used with:||clamps, table saw|
|Access Requirements:||read this page|
The build video also shows how to use this jig near the end.
Sounds familiar? Biscuits are used in similar cases!
Splines don't necessarily have to go through a corner in such a visible fashion but can be used with various joints (requiring different tools or jigs): Table Saw Guide: "Spline Joint"