Sorry to hear about your power problem Mike.  Absolutely buy a UPS; if you're only going to be using it for router/modem for a laptop, then a lower priced unit should do fine.  But like Yinzer says, if you ever use a power desktop make sure you splurge for the best UPS you can afford, as lower rated UPS will quickly become overpowered by the high wattage desktop...I learned that the hard way.

Secondly and even more important imo, I think all traders regardless of whether daytraders or longer term position traders, should ALWAYS enter hard stops immediately after each new postion is executed.    Traders that say they don't like to place hard stops because the market makers will take out the stop, blah, blah , blah, are playing with fire.  You NEVER know how low a stock will go once it hits your mental stop loss.   And if you're busy with multiple postions the runaway price in the bad direction will leave you stunned as you hesitate with emotional angst.   If you're wrong you can always buy back, sometimes at a better price, sometimes higher, but we must know where to get out before the trade is placed.   Most brokers now allow for automatic stop placement the exact instant the new buy is executed, great for daytraders with extra short holding times.   All I use now are hard stops and numerous times I've seen the price tick down to within a penny of my stop without hitting it, so I don't buy the stuff about market gremlins stealing your stop.  Good luck, and now you have a solid roof over your head:)

look for one that holds up for 30 mins or more, your trade might be complete.