I am making "Sew Easy Twist bags" and am using black, white and yellow fabrics. Should I use white or black thread? I refuse to change the thread out when moving from one color to the other. What do you all recommend?

Laura

Are they solids or prints?

You're more likely to see black thread thru white fabric than you are white thread thru black fabric. That said, I'd probably use gray.

http://www.quiltingboard.com/t-38392-1.htm#841194
This a black and white quilt I did. Top stitching done in black most of the pieces put together with white thread.

I use gray thread on almost all my piecing.

I agree, I use gray often. Neutral is better.

I use grey thread from connecting threads. It blends in with everything.

Your choice! There are no wrong answers! You could do a test on a sample fabric piece possibly to see which one you prefer.

I vote for gray.

it depends ... do you want your quilting to really stand out? if you do then judge what is going to stand out the most..is it mostly white/yellow? use black...is the black more predominent? use the white...would you rather the quilting stitches blend in/not be as noticable? then use a neutral like medium gray. take your top with you to a fabric store and lay each color across it a couple feet and see what you like.