You stumble upon a time machine. (Duh) You decide to go in it. What time period do you go? You may go up to 60 years in the future or up to 60 years back in time each use.
Back in time about 4 years to save my computer's hard drive, then about 30 years to the past to get a commadore 64, then back to the present to put the new hard drive in my computer and to use the computer I got from the past... (BASIC pwns!!!)