Well, using YNAB didn't give me a choice.
Hence, I uncovered a few things about my spending:
1. I spend about $540 on food. These includes groceries trip, hawker/food court and also restaurants. Since me and my wife take turns to pay for restaurants, my restaurant bills also includes her share. But I think it averages out, since my wife also help to offset my bills by paying for me. 30% of the food bills come from restaurants trip, another 68% from hawker/food court and the rest are groceries. I think if I need to cut anything, it'll be restaurant bills.
Another interesting thing is that I grossly underestimated my food expenses. As a rule of thumb, I count it as $10 per day ($5 per meal) for 30 days per month, amounting to $300. Then I include another $100 for restaurant bills, chalking about $400. I didn't include groceries at all in the past. So now, the new metric should be $20 for food per day, everything in.
2. I used to be very concerned about spending a lot on gadgets. I mean when I don't spend, I really don't spend. But if I do, it'll be $xxx to $xxxx in one shot. This is something quite different from my wife, as she is used to spending $xx but very reluctantly to do $xxxx. I set up an account called 'play fund' to purchase all these computer gadgets/games/peripheral computer stuff. Busted it this month when I spent a few hundreds for my handphone. At least I don't feel so guilty now, since I already put in a budget for it. That's one of the main reason why I wanted to do a budget - so that I can spend without feeling guilty, otherwise I could save too much. A happy problem, but a problem nevertheless.
3. I have missing cash here and there in my 'wallet' account and occasionally, extra cash. It's not a lot of money. $1 here, 50 cts there, 20 cts there. It's funny because I recorded in every single transaction. The only way that I could lose or gain these small sums of money is because I seldom count in detail the change that I get from others. It's just a quick visual look and I'll put the change aside. Either that, or my wallet has a small hole that I'm unaware of. This unaccountable sums of money that I can get from time to time is classified under 'reconciliation balance', and it happens when my actual amount of money in my wallet is different from the amount of money I should have in my 'wallet' account in the software.
Things are much much cleaner and clearer. I thought it's good enough using spreadsheet but now I probably couldn't go back to using just spreadsheet. The integration between mobile phone and desktop is perfectly suitable for my needs and it saves me a lot of time double checking.
Certainly one of the best things that happened in this aspect of my life. I'm a big fan of anything that improves my productivity.