Hepa Air Filter
National Allergy Supply Informational website
from Bath Unlimted
Toilet tissue holders which are free standing like the one pictured above
can be placed wherever it is most convenient.
Grab bars like the one pictured on the wall opposite the toilet or on either side of the toilet can be extremely helpful in safely maneuvering at the toilet.
The pictured devices are available at most all retailers of bathroom accessories such as Home Depot.