Sorry to hear you have had a bad week Mary...I hope things settle down for you soon!
Yukky horrible heat!! I know how you feel! What I do when it is too hot to go walking is pop on my WATP dvd's and put our big industrial fan (yes it is in our lounge room as our landlord promised us airconditioning LAST summer and we are still waiting!!!) That way I am still getting much needed exercise in the stinking heat, but I am not overheating!! I have even just used a pedastal fan, it works just as good. Hope this helps you
With the meals ideas.....try popping some frozen meals in the freezer, like the lean cuisine or healthy choice....I know they no where near stack up to a yummy home cooked meal, but they are great for emergencies....I usually buy the steam fresh vege sachets as well (there are 3 in the pack, so I buy three dinners) and it is there ready and to use in no time.