Each situation and need is different, but consider the possibility of doing a little bit at a time spread out over a few months - especially for people doing their own work or when we, as aging in place professionals, want to schedule several smaller sections of a more complete job to afford our clients less disruption of their living environments and daily routines. This is especially helpful for people who are retired and spending much of their time at home rather than at the workplace.
We might even consider beginning with our own homes to try out some of our renovation solutions so that we can experience what it takes to complete the jobs for our clients, to have pictures of the before and after that we can share and use for illustration purposes, and to be able to honestly say that we have made such improvements (such as the ones we are recommending) and installed them in our own homes. This would apply more to universal design and visitability type improvements rather than something involving a special need unless that applied to our household as well.
Some work is going to relatively simple and straightforward to complete. It can be done by the occupant of the home if they are capable and knowledgeable of how to complete the work. Otherwise, it can be scheduled as the first phase to be completed by us or a handyman we select (unless this describes us).
Items that fall into this first phase of relatively minor - but important - work would be swapping out all of the toggle-style light switches for rocker, push button, torch, or motion activated ones. Switches that use dimmer switches or pre-selected timers also are fine to install at this time. This requires only a simple knowledge of electricity.
Replacing lightbulbs throughout the home - and it can be done over a few weeks if budget is a concern - with LED bulbs and fixtures will create more even and dependable lighting. The color output and the amount of lumens vary by the bulb selected and can be done on a room-by-room basis to accommodate individual preferences and how they use the various spaces in their home. The main thing is to offer as much light as possible in a space and eliminate shadows or areas of low illumination.
Replacing all door handles that currently are the round knobs or something other than levers with those single lever handles. Of course, these come in a choice of colors and finishes to suit the tastes of the occupants. If this already has been done, move onto the kitchen cabinets and drawers and replace the handles and pulls with something relatively easy to grasp and use. Be careful of sharp or extending edges on the handles that might catch on skin or clothing if someone brushes against them.
There are many other smaller projects also (such as replacing door handles with the lever-style and changing out cabinet hardware for easy-to-use styles) that can be undertaken by the owners or by us to begin making a huge difference in the quality of our clients' homes.