When you're using a disposable container, it's a given that you'll just write directly on it. When you're labelling food in containers you're going to reuse however, it's a hassle. Make a quick pull-tab label to make labelling and cleanup easy.
Masking tape and other low-adhesive tapes are great for labelling things like Tupperware containers, but you have to pick at the edge to get it back off when you're ready to wash it. This tip from a Parent Hacks reader makes removal easy:
I tried a couple of different labelling systems for pumped milk when I went back to work, and none were easy to put on and take off or re-label. I finally figured out a go-to method that works for bottles, jars, and any other plastic or glass-surfaced container that I've tried it on. I take a piece of my clear office tape (though I would think masking tape would work just fine for this too), and turn under one side so that it has a small tab on one end. I stick it on the bottle or jar, label it up with a permanent marker, then easily can pull it back off when I'm washing the bottle later. No fighting yucky stickiness or going crazy with my fingernails to get the label off. It works every time, is easy and quick.
Fold down the edge before sticking it on the container and you're done — instant pull tab for later removal. Have a clever tip of your own to share? Let's hear about it in the comments.