What have you bought recently (or ever?) that you’ve instantly regretted? At the NFL game at Wembley on Sunday I queued for ages just to look at a stall selling hats, and by some combination of boredom and feverish excitement ended up spending £32.99 on a baseball cap I didn’t particularly like and will probably never wear again. It’s even more obnoxious than the baseball cap I already own and pretty much never wear unless on holiday.