Keep track of older veges in your fridge

I used to waste heaps of vegetables that had gone soggy at the bottom of the vegetable drawer in the fridge. Now every time I put new vegetables in the fridge they go in the right bin, and I move the ones that were in there over to the left bin. When I go to cook a meal I first check the left bin to use up as much as I can from there before I use the newest vegetables that are in the right bin.