Wake Up
You need to wake up each morning for class and wake up to take your midterms or exams. One way is to buy an alarm clock. If the power goes out overnight, then you might not wake up on time. Instead, you can use a battery operated alarm clock.
If you want to use a plug in alarm clock, but be extra careful to wake up on some days, you could use a free wake up call service. I got lots of entries when I typed "wake up call" into google. Here is a short list.
