One of the most surest ways to antagonise other people is to leave them to clear up after you. Whether this is walking away from your half-empty drink can and sandwich box you have left on a desk in the Library or your dirty washing up in the sink at home. Always clean up after yourself and you will be far more popular!
Use the recycling bins
In the Library, there are recycling bins with dedicated sections for leftover food and liquids – please use them and drop only empty containers into the recycling section. At home, rinsing or soaking (filling with soapy water) things as soon as you empty them makes the final washing up easy. At home, do keep an eye on the washing up liquid level. No student house has ever suffered from having too much washing up liquid!