Power failures?

We seem to be having more power blips in the office lately; the lights flash off and on and one of the computers powers off. I'm considering getting it a UPS, but we've already had discussions about replacing it with a laptop which comes with it's own 'UPS' so I'll hold off.

For anyone wondering why it hasn't already got one, the answer's because we've never needed one. If we had one blip in six months that'd be all we'd had, but we've had two in one month.

I'm just curious if anyone else has been noticing an increase in outages?