I have two of the roll around portable AC units. One for the gym and the other  ...I don't know, as a backup I guess.  LOL   But I try to acclimate to the oncoming season early so when the temp starts going up, I bring the temperature in the house up and suffer a little at the beginning of the season so it's not as dreadful for the rest of the year.
@DiverDude:
I just don't put that much thought into my life. I wake up and try to get through the day comfortably.
The only acclumating I do is bringing sweaters or shorts out. 4951