Mine was just nailed together from scrap wood.
The end pieces are the only place where the grain direction has to be considered since it has the handle going through and needs to support the weight.
I have seen totes with a row of drawers at the bottom held closed by butterfly catches.
Here is an image of one that has the same basic design:
Attachment 152524
The is slotted piece in the center look like it would be good for holding saws.
Most of these I have seen are mostly pretty simple joinery. Of course, one can get as fancy as one wants.
I will try to take some pictures of mine today.
jim