How many times have you gone into town, queued up in a key shop, Asked for a key to be cut, had it cut, paid, gone home, tried the key, and it did not work?
Now you have to go all the way back into town, queue up again, etc, etc.
Call me, save all that hassle. I will come to your house, cut the required key and test it before I go.
I charge only £8 per key with a minimum spend of £25.