Expressions used in Everyday Spoken English in Social and Professional contexts
'Bits and bobs' can refer to either an assortment of physical objects; or various jobs or tasks that need to be completed. So, while you can say, "I need to buy a few bits and bobs, like pens and books, to do my work", you can also say, "When I get my pens and books, there are a few bits and bobs that need to be done around the office". The context will make it clear whether you are referring to things or tasks. Because of this difference in meaning, you can use this in any relevant situation, whether it's a social or professional context.