When I was mobile I used to ask if they had an ironing board, if they didn't I took mine. If they did, I used theirs. I had a big fluffy towel which I spread over it and all my products sat in my make up box, which I would stand on top of a coffee table, or their living room bin. I always carried an extension lead with me and I got a couple of clip on spot lights from ikea which I could attach where ever I needed them to give me light. At the end of the service, I would fold up my towel with all my rubbish in the middle, take it out to my car and shake it into the bin bag I kept in the boot.
I never had a board collapse on me, never had a client say it was unprofessional, never lost a client because of using it. Far from it they all thought it was a great idea because of the adjustable hight which meant that it didn't matter what sort of chairs the client had, I always worked at the correct hight for my back.
And clients could set it up with the chairs before I arrived, which saved time.
hth.