Only 20 and I've got crows feet!?

I think I've always had them a little, but I feel like they've been getting more noticeable lately. Someone told me I've got a habit of squinting. I've already gotten my eye's checked. Maybe I squint because I sometimes get dry eyes from contacts? I don't know..I just want them to go away because I hate them. Is there anything I can do to get rid of them completely that doesn't involve botox or surgery?