For efficiency the best choice is online gambling. You can play anytime and anywhere you want as long as you have internet connection. For traditional gambling, not all people can go to casinos. It's either far ayaw from them or there is no business like that in their place. As for amount to bet, you can bet any amount you can afford on online gambling rather than playing on casino.
Yeah definitely right there buddy. If one gets bored on something like waiting for someone or communiting in a bus with just btc deposits and android phone that could visit gambling site then definitely it will be a lot of fun while waiting for the bus to get in your area.
Just do a simple betting will do like bet only not to earn but just for fun. And if things might go lucky one can still win huge on it. Just a friendly reminder not to lose the money in betting make some balance like saving also money for the future expenses or for emergency purposes.