So what's he doing with his money? Is he saving for his own place or is he blowing it on nights out, designer clothes etc? £40 wouldn't pay for much more than his food - it's a very paltry contribution towards gas, electricity, water rates, council tax, room rent, use of washing machine etc. If he has £300 a week disposable income, he should give you much more than that. I agree with magnius that you should work out the real cost with him, including a bit of rent for his room and ask for that amount. If you can't bear the thought of actually taking so much from him there's nothing to stop you keeping half in a separate account and presenting it back to him when he buys his first home. But if he thinks he can earn that sort of money and live at home for free, he's not living in the real world.
Do you buy bottled water? Are you a person that thinks that the freshness and the natural water filtering way through the landscape gives you a better quality of water than even tap water? Do you pay a lot or so no and stick to tap water? Do you believe that those who pay for bottled water are paying for stuff that comes out of the tap and is just as good as tap water? Do you think that bottling water is just environmentally wasteful as it adds more plastic bottles, petrol to transport it all and you can get tap water which you probably pay for anyway? Have I got your attention? Well, tell me what you think about this subject?
A never ending supply of vodka (or the facility to make it!)! You can use vodka the following ways: 1. To remove waterproof dressings (plasters) by disolving the alcohol; 2. To kill molds and mildew; 3. To clean my spetacles - the alcohol cleans the lens, and kills any germs; 4. To prolong the life of a safety razor - leave the blade to soak in a glass of vodka to disinfect the blade, and prevent rusting; 5. Removes wine stains (I would make the wine from any fruit and berries!) - brush it on, and dab it off!; 6. Use on the face as an astringent cleanser to clean the skin and tighten the pores; 7. Add to shampoo - alcohol cleanses the scalp, rem