This summer we beached my SC in Mission Bay for a drink, not being aware of how fast the tide was ebbing. (Maybe the drinks had something to do with that...) I also made the mistake of leaving the rudders down.
When we went back to the beach the boat was firmly aground, with both rudders deeply embedded in the sand. The hardest part was to lift the back of the boat to free the rudders, after that, pushing the boat back afloat was easy (though I imagine that the bottom does not appreciate the treatment, it is scratched already).
My boat came with Matt's rollers, if I were cruising where beaching was a daily happening, I would definitely carry them with us.
Speaking of anchors, my boat came with two "sand anchors" (is that the correct name?). They are like giant steel corkscrews that you sink in the sand to hold the boat.
JTMalone: there are safe places in the SC cabin to store a Danforth anchor. The difference in holding-ability-per-weight between a mushroom anchor and a Danforth is huge.
Practice makes perfect, so be careful what you practice...