Nobody really enjoys cleaning a toilet, but there's actually no way to avoid it. What has to be done, must be done. So, a toilet brush is a must. It really helps if you keep it as clean as possible. Pour a few drops of WC cleaning detergent (heavy duty laundry detergent works well, too) into a toilet brush holder (with a little water added). It cleans the brush in the meantime and maintains a fresh odour. Every time you do no. 2, flush and check if there's anything "left". Spray or sprinkle lightly with a toilet cleaning detergent (cleaner), then use the brush. Flush again. Replace the liquid in the toilet brush holder every couple of days (at least once a week) - water + a few drops of detergent! And don't forget the lime-scale build-up. Once a week a little of elbow grease goes a long way. Put on rubber gloves, rub with detergent (WC heavy duty cleaner or lime scale dissolvent) flush once or twice, then wipe all surfaces above the water lever dry with a paper towel or a machine washable cleaning cloth. Most important: repeat regularly.