I have a 1991 mansion mobile home. I keep blowing a breaker that seems to be supporting all the outlets in the home except the outlet the fridge is plugged into. Every time we have had the washer running or something running and try to run the vacuum it trips the breaker. We use window a/c units that are 110/120 plugs. One is 1500 and 1000 watts since we have put them back in for the summer we can't have either of them running and run our clothes washer at the same time with out tripping the breaker. The breaker is a 15 amp single breaker. What can I do to resolve this issue without having to do rewiring?

Can't do much since you are grossly overloaded on a 15 AMP breaker. No wonder it trips! A 15 Amp breaker only supports 1800 Watts. DO NOT put a 20 Amp breaker in or you could have a fire. Get an electrician to see about adding another 2 circuits, 1 for each AC unit. DO NOT run extension cords from unaffected outlets.

"without having to do rewiring?" you don't. Running several additional circuits is needed. Can you see any of your wiring under the home, maybe you can run new cables down there and fish up into the wall receptacles.

you need to do what we used to do...
carefully only run one or two things at a time until you
can afford the upgrade. Don't listen to any wild ideas for
this problem, it sounds like the circuit breakers are doing
what they were designed for.