Don't worry about the scaling; or worry, but know that premature scalability is as useful as chewing bubble gum if your project starts cosy and small. The real troubles on the web are apt to be things that never crossed your worried mind; if your project grows, scale it up on some idle Tuesday.
Code one thing every day that amuses you.
Style.
Don't be reckless with other people's data; don't put up with people who are reckless with yours.
POSSE.
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