I've seen an approach by someone I follow on Instagram who tracks MFP. She logs her foods but not any fruit or vegetables. This strikes me as quite a healthy approach as in if I want a snack, i'm not calculating the calories of an apple and it seems like it would encourage me to choose fruit or vegetables as they would be "free" (sorry for the SW terminology) and would mean I was getting the nutritional benefits too.
Does anyone else use this approach and how have you found it?