You may need to adjust your doors and drawers seasonally as temperatures change. If a door or drawer won't close, or they seem to be "crooked", adjusting the doors and drawers will fix both. It's easy for any homeowner to do.
If you are unsure whether you have overlay cabinetry or inset cabinetry, check the illustration below.
Overlay cabinetry (shown on the left) has doors that "lay over" the top of the cabinet's face frame.
Inset cabinetry (shown at right) has doors that are "set into" the cabinet's face frame.