The "obvious things that won't come up" are probably the best combinations to pick for a lottery. The reasoning being that most people shy away from these combinations, so there are likely to be fewer winners sharing the payout (assuming that's how your lottery works - it is here in the UK).

For the record, I'd like to say that I've never bought a lottery ticket (but sadly I can't, as I was once sent to buy one for someone else).
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Toby Speight
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