1 person is doing this
Suggested by bobbejack
Save left over steak Styrofoam trays. Give them a good cleaning, then cut them to seal over electrical outlets. This will stop heat from escaping in the winter and keep warm air out in the summer. Yeay Ocean !!
How long this tip/project should take you.
What you’ll need to get this done.
basic - you're familiar with the many uses for duct tape
intermediate - you can use power tools without losing limbs
expert - you're qualified to rewire the house if necessary
$$$$ - $0 - $20/yr
$$$$ - $20 - $50/yr
$$$$ - $50 - $100/yr
$$$$ - $100+/yr