For those of you who don't want to put in a thru-wall skimmer or deal with the skimmer basket attached to your filter intake (ours got broken during a rambunctious pool party) AND want something cheap, I would suggest the PoolDevil. We got ours on AmazonPrime
We had to order this:
to connect it properly (just ordered it today, so don't have the fitting yet but we jury-rigged it for now).
It connects to your outflow (water coming back in to the pool). It's AWESOME! Works like a champ!
We have a 22' Intex Ultra Frame.