I usually lift bare-handed and just use chalk to keep a good grip. But there’s nothing wrong with using weightlifting gloves when you train. If you want to avoid callous hands (for the sake of your profession, love life, etc), weightlifting gloves are one of your best options.
You can click the link below to check out some of the gloves at bodybuilding.com. You should be able to find some thing that works well for under 20 bucks.