Deselect after pasting clip
When copy/pasting a clip, in general there is no value in it remaining selected afterwards.
This is especially problematic for people marking selections using in and out points in a timeline because you've not physically selected anything. What ends up happening is you move on and mark a fresh in/out, hit copy then paste that new selection only to find that what gets pasted is in fact the previous clip because it was still selected.
This is counter-intuitive. The most recent selection, whether that's by clicking something or by marking in/out points is the thing that should be copied.