If you have some extra cash in your savings account, then it may be wise to invest it somewhere that will make it grow faster. One option you can consider is investing in mutual funds. Although doing this may be risky, if you invested extra money that you can afford to lose, then it won't hurt you financially if the market goes bad.
In any case, historical statistics have shown that mutual fund investing in the Philippines bears only low to medium risk. Most of them have actually grown and experienced profits if you have invested long term or at least 5 years. That is really something to think about.