Not a common house spider, although reasonably common in houses.
This is a false widow, most likely Steatoda nobilis perhaps Steatoda bipunctata.
Malthusius is right that she is a Steatoda, but not bipuncta, definitely nobilis.
Females are usually pretty docile & stick to their webs. Were the clothes stored in an unused cupboard, or room?
Whilst they often inhabit places with a lot of human footfall nearby (porches, window frames, conservatories, sheds) they avoid direct contact and are easily spooked. The ganglier males, with similar marking on a much smaller abdomen, tend to wander about more & be more of an issue. However, they are well established in the UK and many of us live side by side with them day to day, with no problem.
She'll probably be happy relocated to an external wall (if it has any nooks & crannies she can retreat into) or window frame?