i started wearing normal tops after day 7. ones that have a bit of stretch in though, so don’t have to put arms up. just like wriggling out of a straight jacket pmsl.
as for washing hair… i found a good way… dip my hair in sink full of water…keep arms close to chest, but use my fore arms to pour cups of water over to rinse. the bathroom floor got kinda wet and its not ideal but did the job.
xx