I used to be a constant Clear user (and still and for home use), but have recently converted to Swipes for work use. Simple and easy interface, not too nagging but with a nice way to delay tasks and get the desk clear for just for immediate tasks. Theres some optional complexity in there is you want it (dependencies etc.), but I dont use that and its out of the way of you dont. Id recommend trying this.
RandomFactor about Swipes - To do & Task list. Plan & Achieve goals., v2.7