Its not about preparing a week or two in advance, you must research the trends thoroughly that what happens to what coin at what time of the week, as there are many a times reoccurring trends in the market where a coin pumps at a certain time and then dumps as well. If you have your timing right then you can earn a lot of money from these silly trades. For example there is a GODS token which is used in the game of Gods Unchained and every weekend there is ranked matches and every player tend to play those tournaments to win some tokens and the rewards are distributed around Wednesdays, so if you mark your timing right then you can make decent profit over a single week.