A total.....

....EB today.  Just one of those 'GRRR' sort of days really.  Chores this morning and I thought I'd do some sorting this afternoon but....I started trying to clear some photos (there are over 27,000) from the Mac.  Bad idea!  I found something that told me about all the duplicated ones - only 1,500 of them -  and started merging them.  It took ages and I could not find anywhere you could do a whole load at once and merge them with one click.  I'm down to just about 1K now but.....it's so very boring.  Any ideas to speed it up?