Oatmeal is by far the best for breakfast if you ask me - i tend to eat it with some protein powder, so it contains everything for a good start and pretty fast and easy to make it. If you do not want the protein powder then a yoghurt or similar is good after.
I use AKG K518. It has a fair price and a decent sound for it. It also lasts great - I used to DJ with them and I had no problems for years. The price is very good - they match it with Sennheiser HD25 in tests which you can get for the double or triple of the AKG's price.
The answer: as much as you can learn. But actually, to start, a basic skillset is enough. I would say that you should start with Java first then you can learn the Android stuff. Thinking in Java is the book I always recommend (by Bruce Eckel); Android has a good tutorial on Google's Android site, I think that is good for beginners. I have not read any books on Android but I am sure there are some good books on advanced topics if you are familiar with the basics. Start with some easy, small thing then you will learn the pieces with time.
I always like to ask about how a "normal" workday goes. When to arrive, can I have a coffee in the morning, how large are the offices, how much do I need to use my phone or anything.
The other question I like to always ask - how do you treat professionalism? Of course every employer says that you need to be professional and your work has to be professional. But there are many places where quality is not really matters (lets say it this way). So why do they need professionalism then? (I hope I was clear.)
Also asking about possible challanges is a good thing in my opinion. Some employers might mean high workload and high stress under the term challange. (Dynamic, young team is also a term which makes me afraid sometimes.)
- Waking up earlier - I thought I am a night owl, but I realized that I am not. Morning is the best time frame to be creative and productive for me (and for many people actually).
- Always keeping my stuff ready. This means clean email folders, clean notes, clean desk etc.
- Watching the food what I eat (I am not on a diet, but I do not eat pizza and chinese food every day e.g), the drinks also (tea instead of coffee), and keeping attention to breaks while I am working
I also pay attention to avoid disctractions while I am coding. Every morning when I sit down in front of my monitors I read my RSS feed/twitter/personal mails first. This is good to start my brain at the morning and also keeps me away from checking these at the rest of the day. A psychologist told me once at a training that your mornings should start with something they call 'warm-up'. This is mine. Some people do not need it as they can warm up while they are travelling to their office or just after they get up and yoga for example.
Ah, and one mor thing for the sleep part. I - personally - don't like when I need to fall asleep during watching a film or a part of a TV-series. It is also not the best when I just turn off the computer and jump into the bed. I always go to bed with a book in my hand. This relaxes me and when I feel I can sleep right now, I just turn off the lights (or my ipad). A few minutes of meditation is also very helpful for a good sleep.
If you are really interested I suggest reading some books on articles on this topic as I am not a real professional, haha.
What I do actually: I just close my eyes, try to relax, and concentrate on my breathing only. It is more a relaxation than a mediation maybe. Sometimes I keep thinking nice things which make warm and nice feelings, just to go away from my current state. At first it is very hard to forget the "chaos" in your head (I was always thinking about deadlines, bugs, appointmens, personal problems and stuff like this), but if you practice it will be easy.
Sound clips are priceless for music producers if they are in a good format (320 kbps mp3 or lossless). Well, if they have no license which prohibits their usage. But music producers are not really "careful" about this, haha.