This site has quilter calculators to help you calculate yardage for borders, size side and corner setting triangles, backing, binding. Have this site on my phone and use it often while contemplating fabric in the quilt store.
Another handy chart for making quilts twin through king. Shows the number of blocks needed and finished size. The quilting block size on this quilting chart are rather large (This is really gonna come in handy when I start quilting. Perfect new hobby)
How to Square up a Quilt Block (click through for tutorial) In my less-than-perfect world, I often have less-than-perfect quilt blocks. Learn how to square up a quilt block easily for your patchwork quilts too.
Lu Bird Baby: Easy Strip Quilt Tutorial If Baby Harris is a girl, my mom and I will be making a strip quilt like this for our baby bedding! More meaningful and useful than that bulky bedding set you spend too much on and don't even use!