Buying stuff online

Because I don't get home so much any more and my raging need to write is just as strong as ever, I bought from Amazon a bluetooth keyboard for my tablet which is where all my writing is done at the moment.
    I waited with avid anticipation because my virtual keyboard is rubbish. 
      It arrived three days later and looked great, smelt great and the keys were nice and big to suit my clumsy fingers. Then I did the stupidest thing by reviewing it before really trying it out. Now I'm not the fastest typist in the world, but I had to stop every five seconds to let the words catch up with me - oh, and the spacebar didn't work very often. At the end of every sentence I would have to spend twice as long as it took to type the line just to separate all the words.
      So I dumped that one and ordered another; a model upon which I'd written two novels before my pounding smashed it to pieces on an earlier ten inch tablet.
      This one has a cable which attaches to the tablet and is much faster than bluetooth. Never mind I thought, I can live with the aesthetics of it. And yesterday, three weeks after ordering it, the thing finally arrived. The only thing was that it has a standard sized USB plug on the cable. Why on earth would they put a standard plug on a keyboard destined for a 7/8 inch tablet?
    Thank heavens for Maplins is all I can say.
    Today I managed to find a USB/microUSB converter. That it cost nearly double what I paid for the keyboard is too bad. Now I just hope I can get on with it even though the actual keys are a lot smaller than my podgy fingers, so writing my next tome might take a while.
      This is in no way a defamation of Amazon's wares, but more my carelessness in not reading the reviews before parting with my money.