Try tube socks, which are easier to put on because they don't have heels. Consider buying T-shirts. They tend to look okay even if worn backwards. Consider using a cotton vest if person has a lot of difficulty with putting on a bra. Try short cotton socks, knee high or thigh high stockings.
Panty hose are difficult to put on.
However, stockings with garters and knee highs with wide elastic bands may be bad for people with circulation problems. For a lady who is used to wearing pearls or beads each day, a simple choice of long beads of pearls which can be twisted to double with no clasps can really preserve self-esteem. Shoes might be on the bottom with stockings inside, and the dress, slip, bra and underpants on top of each other. Try putting a poster on the wall above the person's bed and above the laid out clothes. The poster could list the sequence of clothing.