Parents: help me parenting while separated (2)

[Ripe]

Parents,
How do you do when it comes to the kids' clothes?
When STBXW moved she emptied the kids' wardrobes and took all their clothes with them.
And because of this, so far STBXW and I have been sending the kids clothes back and forth.
I pick them up at her place and she hands me a bag with clothes for the weekend. Some days later I return the clothes already washed (at the beginning I would return them unwashed, but I became proud of being a single dad and started washing whatever the kids dirty while being with me).
I am thinking about buying clothes for the kids for when they are with me, but this does not seem practical.
First, I have no eye for clothes or colours - not even DBing can change this (I should have had daughters to help me with this).
Second, in two weeks all the clothes would be mixed up, mine and W, so to say, because the kids would be going to W's place wearing "my" clothes.
Am I complicating too much?