I lay out rows of strips cut to the correct width on my large cutting board then lay my 5 x 24" ruler over them and cut to size. With a really sharp rotary cutter, you can make your rows 4 deep. I usually only lay out 4 rows. I will be picking up a Shape Cut ruler the next time I go to Joanns, though.

This is Rhonda's offer for the free templates

http://www.quiltingboard.com/t-36008-1.htm

In front of a good movie!

June Taylor Shape Cut or the AccuQuilt Go! Shape Cut is cheaper and cut multiple sizes--you have to buy separate dies for different sizes for the GO so it can get kind of pricey but they both cut thousands of little squares in a short amount of time.

Ditto on the Shape Cut Ruler.
I also use Rhonda's 1 1/2 inch and 1 1/4 inch square for individual cuts and for squaring tiny blocks.

Oh please get a June Taylor Shape cut. 12" is easy to find but she has an 18" so get it if you can find it. You will bless the day you did. Trust me. It is the best investment I have made. I would just about give up my sewing machine before I would my June Taylor Shape Cut. I am not teasing and have no affiliation.

I cut my squares or triangles IMMEDIATLY after I finish cutting out my blocks,quilt shapes(squares, strips, ....) and add them to the appropriate shaped stack for later use.

Good discipline!I've been giving my scraps away!

I have the June Taylor Shape cutter, not used it as yet, but it seems a good tool to have. there is a video on it on youtube ...

I had mine for a while before I used it. First time I used it I loved it and now want the bigger one!