I am a nightmare for small £10- £15 purchases. Will often go into a bike shop for a nose about, or a few gels perhaps and inevitably leave with a saddle bag or bar tape
You're on your own with the gels, but I've far more on-bike bags than I could possibly need. I've given one away so far, but there's still at least two bar bags, at least two saddle bags, a top tube bag, a frame bag, three rack-top bags, double panniers, triple panniers. At least some of that overkill was a consequence of failing to find a rack-top bag which doesn't foul my heels on the folding bike, but the top tube and frame bags were me basically believing people who said they're the best thing since sliced bread when I don't agree and should have known I don't agree. The longflap saddlebag and double panniers get used far more than anything else.