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@dicki
as you have had quite a few in recent days have you looked at the following .....
rim tape ..... do you have any ? is it damaged in anyway ? is the inner tube blowing out through the spoke holes being punctured by the ends of the spokes ?
tyre ..... is it in good condition ? side walls nice and firm ? pressure correct ? if pressure is low and tyre is a bit knackered you might find hitting any pothole / kerb / bump might create pinch flats ? do you still have the bit of glass or whatever caused the first puncture still stuck in the tyre so that everytime you remount the tyre / inner tube it is holing the inner tube again ? are you putting the inner tube in carefully to avoid pinch flats when mounting the tyre on the rim .. some tryes can be a bitch to get on and you may have the inner tube trapped between rim and tyre
do you have puncture proof tyres ? bontrager hardcase i find to be excellent tyres very few punctures with those
and finally do you right through a pin tack factory or glass breaking centre on the way to work that might be casusing the punctures ? if yes then avoid