Stupid at Work

I don't know how much longer I can take this IT thing, both with TS and maint. People call about the most annoying things. This lady called me three times, and the last time she could not type in any numbers and felt this was due to our website. I advised her umm NO, I can log in and asked her to use the numbers on top of the letters (breaking it down) and she said oh there it goes! I wanted to shoot someone; she called because her num lock was off and felt it was our site. I mean common sense would say since I cannot enter the numbers maybe I should try all the numbers on my KB first then call and accuse the company.
There is a man that works with us at the company. Every day he calls me about 5 times, I have to remote into his PC almost daily, eating up valuable time. I know it is part of my job, but if someone cannot figure out how to save an attached excel file OMFG!!!

That's my brief rant! HELP ME!!!