Please can someone help us identify this tiny bug? Having lived in our Sussex house for 15 years relatively bug free, we are currently finding these tiny beatle/ladybird style bugs crawling across our bathroom floor.
That is Anthrenus verbasci, which infests natural fibres. Usually wool in my experience. Have a look round for something nearby with holes in it (the larvae, which do most damage, have probably wandered off and pupated by now). Try to keep catching them so you don't get another generation.