Tying yourself to the mast is the oldest one, but there are other ones such as locking a credit card away with a key or not bringing junk food into the house so you won't eat it or unplugging your Internet connection so you can use your computer.
把自己绑到桅杆上是最古老的一个例子，还有其他的 把信用卡锁起来 不把垃圾食品带回家而减少摄入 断网 来保证使用电脑