I don't think that's the appropriate way to phrase the question. The issue should not be what government should permit, but rather what we allow the government to deny. The difference matters because the phrasing suggests the default answer, and a default of not denying is better than a default of not permitting.
And something having a negative impact on the public good is, frankly, not enough to deny it. Taxes are a necessary evil, but they are an evil nonetheless. There is nothing necessary about banning light bulbs. As for getting high, well, with something like pot, we really SHOULDN'T be denying it. Just like we don't deny people from getting drunk. Harder drugs are a more difficult call, but in any case the drug war hardly provides an inspiring example of the benefits and effectiveness of government regulations.
In terms of light bulbs, the public harm you seek to avoid is using too much energy. But banning incandescent light bulbs doesn't even guarantee that result, because energy consumption is determined not only by the appliance, but by usage patterns. Surely you would balk at government dictates on usage patterns, so why do you not balk at government dictates on the appliance itself? Is it merely because one is not an imposition to you personally while the other is? That would be rather selfish of you. If government is allowed to tell you what kind of light bulb you can buy, what prevents it from telling you how you can use it? If your answer is merely that they wouldn't, my response is that this is not an answer of principles, but merely a claim that you'll always be in the majority on this issue. That's not a principled position, nor in my mind a particularly safe one.