Personally I've come to find poker is the only reliable way to "beat the house". But that's because you're not beating the house, but other players - the house

Personally I've come to find poker is the only reliable way to "beat the house". But that's because you're not beating the house, but other players - the house gets their rake. If you play a tight-aggressive game in venues the pros avoid (anyplace with less than $2/hour comps in Vegas) you can do decently. Not get rich, but make a few hundred in an afternoon.