cracks

What is the best way to fix small cracks in ceilings? If its a larger crack I usually tape and mud, but for smaller cracks, is it worth breaking the crack apart with a blade and then filling with plaster? Do I have to tape over it after plastering it? or is the plaster good enough to hold?

Here's a before and after video I did. After we pressure washed the exterior of this Brevard County home, we repaired all of the staircase stucco cracks, applied a clear sealer to ensure good adhesion and then applied two coats of Sherwin Williams A100 satin exterior paint to the stucco walls...

Still working on this bid for a NC garage (1025 sq feet). Have looked at several products, including Tile Clad, H and C, Armour Seal. They want a smooth, shiny surface. The HO is worried about the score lines accumulating debris (153 linear feet) and wants to know about "caulking" them so the...