Additional living expenses, or loss-of-use coverage is typically a fixed amount – 20% of your dwelling coverage. However, if you live in an area prone to wildfires or hurricanes, it's worth checking with your insurer to see if they offer higher coverage limits in the event a catastrophe forces you from your home for an extended period. Additional living expenses can add up, so it may be worth the added peace of mind to increase this coverage component.
Collision coverage has a deductible, which is the amount you pay before your coverage helps pay for your claim. You can typically choose the amount of your deductible when you buy coverage. So, if you choose a $1,000 deductible and your car is later damaged in a covered accident, you'd have to pay $1,000 toward repair costs. Your collision coverage would help pay the rest, up to your coverage limit.