How can autosum of column auto-update if new rows are inserted

I'm making a spreadsheet of my daily expenses. My rows are populated with items I purchase such as gas, food, etc. My columns are each day of the month.

I autosum each row, and that total gets autosummed down the column to arrive at total expenses for the month.

Occasionally I insert a new row because I think of a new item I want to include. However, this causes a gap at the end of the row where the autosum usually is. It's not the biggest deal, but I then have to manually drag the bottom right corner of the cell above it to copy the autosum formula down to the new row inserted.

Is there a way where this can dynamically update, and I don't have to keep manually fixing the autosum for each new row inserted?

Thanks for responding guys. The only problem with your answers is I want to insert these rows in the middle of my spreadsheet and not at the bottom.

I have my first column categorized by food and other household items, so I can't just add new items to the bottom as they won't be in the proper category.

What I'm looking to do is insert a row in, say, row 15 of a 40 row spreadsheet and have the autosum formula include this automatically. Is there a way to do this in the middle of other rows, or is only possible if it's appended to the bottom after all the other rows?

That's exactly my problem: it's not including it, and the cell where there should be a value which excel dynamically updated is merely blank.

So this is not excel's normal behavior?

I'm sorry, I didn't totally describe this correctly. Yes, when I insert a row the autosum at the bottom of the column updates to include this row.

What I meant is the autosum at the end of the row doesn't automatically add itself there. So let's say I have each row of columns A-F of expenses and I have column G in each row autosumming each row.

Is there a way to have the autosum in column G dynamically add itself once I insert a new row? Each time I insert a new row I have to manually add the autosum in at the end of it (in column G). Is there a way for it to automatically put itself there?