Diseases of all who like to travel: there is always forgetfulness.  As a result, they have to solve the problems they have for their own negligence. Making an itinerary is a way to minimize the occurrence of this, but not all produce the results that are expected because sometimes people still forget. Well, to get further from that disease, there are a few things to keep in mind when making an itinerary.

Mapped all your needs
Making the itinerary should be detailed, so that no one is left behind. To avoid getting bored, stealing knowledge from a travel agent is also possible. However, to be more specific and detailed, map all needs from general to specific, such as personal needs. In your personal need, you split it into two parts, the primary and the secondary. Primary needs to discuss accommodation, food to medicine. While the secondary needs talk about the cost of buying a souvenir, credit, or just a meal. Secondary needs look like something unexpected, but have great potential to happen. Whether it's a travel destination, a cost to cover, or a length of road trip, it needs to be detailed, in order to be detailed and not missed. 

Options Must Be Written
Don't be a frequent traveler and make travel easier. At the very least, you need to have the solution behind the solution. While things may not always happen, it would be nice if you had a choice before settling down. If possible, you have prepared two layers of solution if the main goal fails. For example you want to visit Tsim Sha Tsui, and there are many, almost difficult to enjoy, you can make The Peak to enjoy a quieter place but with a cool atmosphere.
Duplicate Required Items
Most people carry only one digital camera with only two gigabytes of memory for 8 gigabytes. Just on day four, the memory is full. In the end, they couldn't take any more precious moments. So, if you have the essentials, whether it's a camera, or medicine, duplicate them.
Increase Your Funds for Travel
Traveling is always about funding. The funds you own are one of the fun or noisy reasons for your trip. So, for that matter, you need to be able to make the smallest budget planning but still make sense. Don't be fooled, enough as it is but as cheap as possible. Increase your funds during "unexpected expenses". It may sound trivial and some people will ignore it, but if the unexpected expenditure actually comes out unexpectedly, or the funds are used more than prepared, the story is over. Your journey will be a mess, and it’ll be even confusing to find a way home.