You guys are right, I probably should be bringing water along for anything more than 4 miles now that it is so hot out. Normally, I don't bring fluids for anything that short (partially b/c I hate, hate, hate carrying fluids, would never drop off, and thus I usually buy stuff at gas stations -- yes, I despise the fuel belt as well), but I was thinking last night in those last two miles that I should've drank some water or a replacement at mile 4 -- I felt it then.
Today is my marathon of classes (need some gels or replacement drinks for that as well!) and then tonight we have bowling: yay! Thank god it's Thursday and I have tomorrow off b/c this week has me feeling wiped out.
Oh, as a side note, when you guys track your weekly mileage, do you count a week as Sunday-Sunday? Monday through Sunday?