BUT FIRST 
I'm going to read the newspaper. After that, I notice the mail on the table. 
OK, I'll just put the newspaper in the recycle stack...
BUT 

I'll look through the pile of mail and see if there are any bills to be paid. 
Yes, Now where is the checkbook? 
Oops...there's the empty glass from yesterday on the coffee table.
 I'm going to look for that checkbook...
BUT FIRST 
I need to put the glass in the sink.
 I head for the kitchen, look out the window, notice my poor flowers need a drink of water.
 I put the glass in the sink and there's the remote for the TV on the kitchen counter. Hey what's it doing there?

I'll just put it away...
BUT FIRST 
I need to water those plants. I head for the door and... Aaaagh', stepped on the cat. 
Cat needs to be fed. Okay,