>>21479820>>21479983This again, but even better, spicy Indian lemon pickle.
Otherwise this:
>>21479876>>21481282Specifically limoncello. Although you said you're in Australia, the cost of rectified spirit might not be worth the effort, based on what I've heard about Aus liquor prices.
>>21479905>Give them to your neighbours.Nice idea, but in this lawless day & age I'd be way of sending the message that "anon's lemons are free for the taking", that's just inviting trespassers. I'd rather give the extras to family & friends (lol), but only if I thought they might actually use them.
My other suggestion would be trying a lemon-based BBQ/marinade sauce, which would involve sugar of course, but you know that citrus slaps on fish, shellfish, chicken, and pork.