Yes!! words for simple that seems are very very powerful. And with more reason that we are entering to Aquarium age represented by Eter, that represent voice or sound too.
So it is important that all words that you use, selected it in a good way in all forms that you use them. I mean with forms: phrases, sentences, dialogues and so on.
Also, you can use phrases that excited you in a positive way or makes them fun too :) . This can be applied for example to your passwords for any application you use such as : Mail Accounts, Talk Programs like Msn Messenger or yahoo.
For example, in your Msn Messenger you can try also to put a phrase that excite you for a period of a day, or maybe a phrase that excited you in a positive way for entire year.
Have fun !! making new and positive exciting phrases :) :)