Power failure

Yesterday, a power failure caused that there was no electricity in my block for a few hours.
In the afternoon, lights went out, the radio stopped playing, but what was worse, the refrigerator stopped too, as did my computers.
Having no radio is slightly discomforting, having no lights can be inconvenient, but as long as it's still bright enough outside, not very troublesome. The refrigerator having no power is not a problem at first, but if the power outage lasts too long, it will start to warm up. When this happens the food inside can be spoiled.
The computers are a different story. When a computers halts during a power failure, without proper shutdown can cause several problems like damage to the hardware or contents of the harddrive if they weren't yet written to the disk. It is possible that the computer won't boot after power is restored, or that important data is lost.

Luckily, power was restored after a few hours. Nothing was damaged and the refrigerator was still cool enough when it was restarted, so no food had to be thrown away.
All computers rebooted without problems and only a slight problem with a partition on a harddrive was detected. Fortunately this could be resolved easily.

I don't like it when power failures emerge, but taking into account that the outage lasted only 3 hours and that the previous power failure was more than a year ago, I can't realy complain.
But maybe I should invest in a UPS, to make sure my computers are protected when the next power failure happens.