Jennifer you were lucky. In many places we have an over abundance of deer because of mild winters. If they can find better food somewhere else they eat there and will leave your garden alone.
With an acre of woods on my property and most of the houses in my area have at least an acre that they have let go wild and woody but it is not enough food to support the amount of deer we have.
I am sure some of my damage is also because of groundhogs. They eat as much as deer.
The reason I use so many different things is because deer react to different products that are on the market. What someone in another state say works wonders for them can be like candy to the deer in another state or area.