So many. So so many.
It all started when I was about 6, deep in the recession and my dad was out of work. Nanny and grandad have given me some money to buy myself a birthday gift, it was an ice skating Sindy. I mention the out of work partly because there wouldn’t be a chance of replacement and partly because i remember unwrapping it while standing in the dole queue with my dad.
Anyway, get home, go to the toilet, will not be separated from Sindy. Dropped an ice skate down the loo and couldn’t bring myself to fish it out. Poor Sindy.
Bought a gorgeous pink corduroy jacket at about 19, wore it to work - in Costco. Managed to get bleach on it, it was ruined in a day. The bleach ate literally holes through it in a day. I can only assume some industrial strength cleaner got on it somewhere.
Moved into our first house, bought a gorgeous marble fireplace. Smashed the day before fitting. Cried SO much and genuinely nearly split up my relationship - it was an accident but an accident caused by now husband’s temper.
Twin toddlers and off on maternity leave with another baby. I had the first kindle and therefore needed a light - had bought so many little clip on ones, but they are very easily broken when grabbed by little hands. Think I went through about 6 of them at about £5 a go. So I treated myself to one of the lighted kindle cases. They were about £50 new from amazon, so I got a second hand one from eBay which was still about £40.
Not joking, first day I used it, one of the toddlers picked it up and bent the kindle forward which bent the hooks in the spine. I tried to bend them back and one snapped off. It was completely unusable without it and as I bought it from eBay not amazon I couldn’t even try for a replacement (they were very good back then, they’d already replaced a kindle that I was very honest I sat on!). I’m afraid to say I lost my shit and there’s still a dent in the wall where I lived it in temper 
Phew that feels better! 