another tipping question (sorry)

[Torello]

I have a problem that sometimes I forget to tip. My usual tipping process involves a $1 chip being my card protector and going to the dealer with my winning cards (sometimes accompanied by 1 or 2 more if it's a big pot). But sometimes (usually if I don't have a $1 in my stack) and there's a showdown where I'm not sure if I'm going to win or not, I get distracted and forget, I'm a very absent minded person.

Unfortunately the forgets usually happen in big pots with marginal wins... the hands that would most call for an above average tip, if I'm showing down the nuts I'm not going to forget. Sometimes I remember later, or try to remember and am not sure and just toss 1 a little later. But I'm sure I've pulled some big pots and unintentionally stiffed before. I'm not really sure what to do about the situation, other than increase the rate of tipping 2-3 instead of 1 on big pots to make up for it over time. I've never noticed a dealer being unpleasant to me.