Slight tweak in the rules

After going for a run, I realised that the current plan would have my 'real life' buying groceries at full price every time I found a deal. There do seem to be lots of specials in the grocery store, so this is not realistic. I'll completely guess that there is a 25% chance that something I am buying would have been a deal anyways so I only get to declare 75% of any savings toward the double project. So the $14.50 turns into $10.87. I also forgot I charged myself a dollar of gas for going out of my way for the $10 coupon, so this becomes $9.87. I also found 5 pennies last week, so that's back up to $9.92.