Hi Stan,
Not sure if you are like me and have a strangely satisfying feeling when masking up? I don't know what it is but I find it quite theraputic when the tape plays right. I have the opposite feeling when removing it though! I tend to use allot of post-it notes these days having seen the technique on-line a few years ago. The sticky edge is great for tacking them in-place until a line of tamiya tape is run across for the proper edge. Otherwise, like you, sometimes it's just easier to use masking tape. I know it's not the cheapest but I get on really well with 3M Blue contractors tape. Maybe I get away with it because I use allot paper inbetween so its a tolerable cost.
99 ways to skin a cat though. I'm more impressed that you get on so well with the paints you use -especially white.
Rich