Two tricks discovered on Dell's Latitude E4300 laptop

The first one is pretty straight forward and probably more Dell-related. I just found out that you can turn off battery charging by pressing Fn+F2 which is an awesome feature because I usually prefer to have my battery on all the time in case there is a power outage, but at the same time, I don't wanna make too much over-charging which might cause a shortened battery life. So having the option of stopping charging the battery is definitely something nice to have. Big applause to Dell's engineers.

The second one is how to type in special signs for example the pound sign £ through a US-layout keyboard. The solution is pretty simple although I've spent quite a load of time Googling for it. First of all, turn on the num lock of the numeric keypad by press Fn+F4 (at least on Dell's Latitude E4300, you can find other key combinations on products from other manufacturers); after this, the num lock blue indicator will be lit up on the upper verge of the keyboard. And then, you can type the key stroke combination Alt+Fn+mjol (for the pound sign) which can be looked up in the "Programs->Accessories->System Tools->Character Map"; combination "mjol" from the normal keyboard is the same as "0163" from the numeric keypad. The second trick comes in handy especially when you have to type such a rarely used character in the password field of windows log-on screen where normal copy and paste does not work.