I don't necessarily count the blocks unless there are tons of them, then I'll make them in piles of 10's or 25's. I do though count and put into piles the number of sections for each block. I write down the sizes I need from each fabric, mark them off as I get all the cutting done for it so I don't cut again and waste fabric. Same for the sashings, borders and bindings. I mark them off on my list so I don't cut again. This is also how I fugre how much fabric I need from each fabric too. I get pretty close to the amount with little waste. I have enough scraps so don't want to add to it if I can help it.