do you wanna know how to really get customers?
let me tell you...
get a domain that's similar to:
tampacomputerrepair.com
is there another large city nearby that you could service? if so, make a domain for that.
this way, when someone searches, "tampa bay florida computer repair", you could come up in top 5 easily on google.
i would start off by not getting a business license, but that's just me. you can accept paypal through a virtual terminal, cash, and checks written out to YOUR name. if business goes as planned three months into it, then you should get a business license.
spend $50.00 or so on seo services like directory submission, backlinks, etc. you can buy those services on here. this way your seo can kick in soon.
put aside a budget for advertising on ask.com, google.com, live.com, etc. all the major services. but put aside a fair budget, and ONLY do the keywords that include tampa in them, and only do it within your city, because it's pointless to advertise in other states. nobody is gonna send you a pc to repair, lol.
i highly highly highly reccommend this... you pay someone (probably overseas) to put up a craigslist advertisement twice a day. 815AM, and 1015AM. put different titles, and have 20 different combinations for the titles, and a few different advertisements. they could be like:
emergency computer repair! need help?
tampa computer repair- i come to you!
i fix computers- 10 years experience!
speedy computer repair! i'll be there to help in 30 minutes!
and similar. notice i used the word help, because people search for, "computer help".
offer service charge for traveling. it can be $.30 per mile, or $.50 per mile, an hourly charge for being there, and a charge for each thing. make a list that they can view on your website or CL ad.
printer installation: $10.00
computer clean up: $15.00
etc
etc
*all prices do not include hourly rate or traveling fee.
you can also service printers, or deliver ink/toner for an additional fee. just keep stock of generic toner at home, and you're good! make $30 a pop easy.
after getting established, you can be doing this full time in three months, i guarantee it. just follow everything like i said.