There are hundreds of thousands of these ramen shops around Japan. Hot warm soup, noodles, eggs, and pork. Doesnt this just look so good after a night of drinking.
If you missed your last train and it 2 or 3 in the morning and you just wanna crash. Head to your nearest net cafe. At 300-400Yen an hour, it's your best bet to get a few hours of shut eye.
Free wifi is rare in Japan. If your out and need to do a quick email check, head to Starbucks. Most major stations in Osaka has at least one (and usually more).
Not your typical macho scary police officers. They are generally very polite and can help you find your way. Since theres not very much crime in Japan, what else is there to do? Just look for the green KOBAN sign (Police Box).
If you ever forget need or want absolutely anything, Don Quixote (Donki or ドン•キホーテ). Be prepared for the catacomb-like isles and endless rows of eye catching items. This store was designed to eat you up and not spit you out.
Feel free to drink while wandering the streets. Its not illegal in Osaka. You can even drink in front of the police box and not even get so much as a suspicious look (not recommended).
7-Eleven ATMs are known to be the go-to cash machines for tourists. Not only do they accept most non-Japanese bank cards (in addition to Visa / Mastercard), but they're open 24/7. Most traditional Japanese banks close at 3PM. Don't ask why, because we have no idea.
Gonna do some heavy drinking? This is the Japanese miracle drink. Drinks this before your "session" and it will help you not get a hangover. Trust us we know!
Google maps works offline. When you have internet load the area you want to go, find your exact destination on google maps. SAVE IT!! When you get to the area. Open googles maps again, Voila!! Never get lost again! !