I have a number of different sized rulers, and I have some with yellow markings.. great for dark fabric and black markings for lighter fabrics..
I use some small ones to mark mini quilts, big ones for standard.. I did just buy a 60 degree diamond, but I'm not sure how much I'll use it.. I make clear plastic templates for a lot of the fancy stuff. as for other things.. I'm with Patrice.. besides, I'm kind of an old fashioned girl in that respect. I am getting ready to try out my rotary ruler to cut some 2.5 and 5.5" blocks.. wish me luck.