Everyone knows that the Android apps you download from the Android Market download and install directly on your phone, without asking for permission, so you cannot choose where you want to install the app. Well, if you want to save some phone memory, you should install Android apps to the SD card. This way, you keep your phone memory clean and you can have your apps always with you, as long as you have the SD card around.
There is nothing wrong in having all your apps on the SD card, because in case something happens to it, you can download your apps again. Unfortunately, there are higher chances for your phone to break first, instead of your card, so you should keep your apps there. If you want to install the applications you download directly to your SD card, you should change some of the settings of your phone.
If you go to the applications settings of your Android phone, you will see that you have an option to install everything you download from the Android Market directly on the card. If you select that option, your phone memory will be clean and no more apps will be installed on the phone, but on the card, which is ideally as far as I am concerned. The SD cards usually have a long life, so you should not be worried about it breaking down. In addition, if you have a bigger card, you will be able to store more apps than you would on your phone, whose memory, by the way, is limited.
Therefore, instead of installing all the apps on your phone, you should install them to the SD card, because this saves you a lot of memory and your phone could use some space, believe me. Changing the settings is not such a hard thing to do and you will see that everything will go great once you have moved all your apps to the SD card.