Haven't had one of these threads for a while!
Mine:
You can loosen the paper on garlic by twisting the clove. Better still, thwack clove with flat of knife to crush, pick paper off.
To chop herbs or anything small, hold the end of a curved chef's knife on the board with your spare hand, and just see-saw it up and down, back and forth.
To shred cabbage/lettuce/any leaves, roll leaves up like a cigar and slice.
To skin celeriac or swede, slice into discs, then place flat on board and cut down round the edges. Also works with pumpkin, though you don't actually need to peel butternut squash.
Anyone else?