One of the things that confused me when I started quilting was joining strips together at an angle. Instead, I would join then end to end straight, and end up with a lump of seam allowance in my binding.
Here is a quick and easy photo tutorial of how I join strips now.
Lay your strips right-sides- together so that the ends are perpendicular.
Turn the strip set so that you can run your sewing machine on a diagonal line across the strip set. (Use a pin to keep the strips in place if you need to).
Stitch across the diagonal.
Use your rotary cutter or scissors to trim the corner off, 1/4″ from the seam.
Open your strip set and press the seam OPEN.
This will result bulk in your binding or pricing because the seam will not overlap in the same place, and with the open pressing it will lay very flat.
If this was a confusing technique for you, I hope this tutorial helps!
Until next time,
The Quilt Police