Is there a simple way to cut those little squares? Or just a little at a time, carefully?

What kind of little squares?

I fussy cut squares one at a time when I'm trying to "frame" part of the design.

How little is little squares?

I just cut mine a little at a time. I hope someone here has a better suggestion.

If you just want to cut a bunch of squares get a June Tailor Shape Cut Ruler.
Fold fabric to fit under ruler, cut strips, rotate ruler & repeat.
Great for watercolor quilts

When I have to make lots of blocks, little or not so little, I make strips first. Stack the strips & then finish cutting the blocks. For a 2" block you would cut 2" strips, stack three or four strips & cut the strips into 2" squares. That way you can cut 4 blocks at a time & it goes fast.

Scraps into 2"square or 1 1/2".

If they are small scraps, one at a time.

Get a little cutting mat, a small template (Rhonda has been giving them away) and do them while you are sitting in front of the TV.

It helps to iron/press them first.

I am glad you asked that question, I was wondering the same thing about little squares. What is the small template that is being given away.

The Shape Cut ruler rocks for this!