Confidence comes from preparation. Know your stuff inside out.
每一部电影都是一次旅程,每一次旅程都是一部电影。
What you actually pay for something is at least twice the listed price because of the energy, time, money needed to set it up, learn, maintain, repair, and dispose of at the end. Not all prices appear on labels. Actual costs are 2x listed prices.
For the best results with your children, spend only half the money you think you should, but double the time with them.