We have three portable alarm systems...

I was living in a rental at the time with no hook ups and a mini portable washer.

The portable heaters are a good idea , UNTIL you get the furnace repaired .

I learned that many, many of the people who claim that they've 'arrived' are self-delusional, pathological liars, will tell you that they've done such-and-such and keep a straight face when, in fact, they couldn't find their way out of a paper bag with a portable Garmin GPS.

when I was in the timber business in the 90s  ( and we made millions at this)  here is what I did that is a little out side the box.. lap tops  you know what those are they are portable computers. 

Portable hand held bar code reader.

I was able to go into the title company a few times and sign in July  but this week I had 4 sets of construction loans and we did it in my driveway on the title companies customer service reps portable table.. mask gloves fresh pen that gets thrown away etc. 

Under the old VA Foreclosure system where you had your key and bid online I ran across a fellow investor who had a portable generator in his pickup.

Sean, In our experience the best practice some of our clients use is to purchase portable fans and leave them in the unit until the issue is resolved.  

@Aleksander Dabrowski As you move forward a word to the wise depending on what configuration of rentals you end up with put in a ban on portable washing machines and dishwashers on all floors that have a floor underneath them.