Who needs a table saw anyway? With this cutting guide, you can make accurate 90- and 45-degree cuts with your circular saw.
Cut the guide to the size you need, checking its angles with a framing square. Screw a 4-in. cleat board on one side, positioned so that the guide will extend beyond both edges of the board you’re cutting. You’ll get a straighter cut because the saw will be supported as it begins and ﬁnishes the cut.