It may be time to toss some of the information in the folder. Never overload a filing drawer. It will make it difficult to retrieve information in the drawers. Sub-divide larger files with interior file folders. Tab hanging file folders in the front.
Return calls in batches.
Leave specific messages and the time you called if the person you're trying to reach isn't available. Keep an assortment of all-occasion cards and stamps in your desk. Keep takeout menus from favorite restaurants so you can order ahead and pick up dinner on your way home. When using more than one checking account, color coded checks are an easy way to identify each account. At the end of each project or event, organize paperwork and file or store it.