Broken a lot of strings lately. It takes only from a few weeks to one or two months. Every single sting breake on the same place to: in the top of the bridge...
And I've had many discussions with some friends about it:P

Some say it is caused hard playing, some say I use to thick picks and some says it's the tremolo that causes it...

It's a Classic 70 Mexican Strat... Any suggestions?:P

Aside from some inherent structural problem, the principal reason behind regular string breakage is often old strings. That is to say, if your strings are old you would be well advised to change them before they break. My strings get changed every two weeks--as well as before and after any gig--at the very outside. I don't ever break strings, even when I wail on my guitar or kick it around.

Don't know what you call it, but the plastic plate that is covering the tremolo. Want to cut it around the place you insert the strings, so it's easy and fast to change.. Practical if you change a lot and don't care about the looks on the back of the guitar.