There's no such thing as having too many pockets. These simple peel-and-stick shirt pockets are downright genius.
Etsy seller Ryan Vanderbilt has them in his shop in a variety of colours, fabrics and patterns for just $13.88 each. Like a Band-Aid, you just peel off the backing and attach them to any garment. They're made specifically for shirts, but there's nothing stopping you from running a series of these up both pant legs and finally being able to ditch that murse.