I wanted to put lids on my sideboxes, but wanted to make sure they were easy to open. I saw some models with tabs, but I didn't want my printer to take up any additional space, so I opted to add a simple notch. I attempted to shape the notch so that your finger can get in and your fingernail has something to grab as well. I also wanted one version that worked for both sides since it had a centered notch. This was my first attempt at using tinkercad to remix an existing model and it does what I needed it to. It may be useful to others.
It works with the model it was remixed from and the mesh basket remix as well.
The author remixed this model.