I heart you cheap Christmas!
I hope you've all got your lovely decorations up. If not, why not? If it's because you think decorations are too expensive then you're right but there is alternatives. Charity shops are great places for cheap decorations, they sell new and unwanted decorations.
The other alternative is to make your own decorations. I'm sure when you were younger you made lots of Christmas decorations, paper snowflakes, paper chains and cotton wool snowmen. So why stop now? They don't have to be perfect they just have to look festive.