We recently adopted a stray cat. Had been keeping an eye on her as she would regularly come to the house so we'd feed her and became concerned now that the weather is getting much colder, etc. Took her to the local county shelter and checked whether she was chipped or not, she wasn't. Also got her vaccinated and scheduled her to get spayed in a couple of weeks.
Best guess is she's around 3 months old or so. Unbelievably adorable and loves being pet. Cats in the wild are typically afraid of people and will often run away. This particular one was more mild mannered. We just decided that we wanted her to be part of the family.
She's been a happy camper ever since.