in a year = faucets
in months = trading
in weeks = mining
in days = mining ALT coins and exchange them
in hours = bitcoin ATM
easy formula
the only thing that i agree from this list are trading and mining altcoins and exchanging them.
earning bitcoin from faucets is a complete waste of your precious time. you can earn more bitcoin by searching for giveaways in that time.
mining bitcoin is no longer an option for solo mining anymore. and in mining altcoins, you have to do your research to see if it is worth mining and is it going to give you profit considering the electricity costs. and keeping in mind that altcoin prices are so volatile.