It's better than nothing
A phrase used to describe an accomplishment so insignifican it is virtually equivalent to nothing. Often used by slackers to justify slacking.
My goal was to exercise for an hour, but after 2 minutes on the tread mill I called it quits and ordered a pizza. It's better than nothing.
Better than nothing
Someone who's not Mr. or Mrs. Right, but is Mr. or Mrs. Right Now. Someone who will do in a pinch until a more suitable person comes along.
"Hey, what do you think of my new girlfriend?"
"Well, she's better than nothing..."
"Well, she's better than nothing..."