Experts have shone some light on just how often we should be washing different items of clothing.<br /><br />This video breaks down how to decide which items need to be washed after just one wear, and which you can get a few wears out of.<br /><br />The likes of underwear, of course, need to be washed after just one use, but sweaters, pjs, and bras can be worn a few times.<br /><br />Suits can be worn three to four times before needing to be dry cleaned, according to these cleaning experts.