Warm, bright surroundings are a safe bet
Growing tender plants near a sunny window is easy: Turn the pots every few weeks, and water them when the soil dries out.
The easiest way to overwinter tender perennials and tropicals is in a warm, bright setting, such as a sunny indoor windowsill. Deciding what gets the prized space near a French door or large window is a matter of horticultural triage. The chosen few are usually plants I don’t yet have a clue how to overwinter (I usually take cuttings from these in early summer so I that can test another overwintering method on the offspring) or those that will be handsome houseplants. Before the season’s first frost, I bring the plants indoors and place them near a bright window with an eastern, southern, or western exposure. Sometimes I cut large plants back by half to two-thirds before I bring them in the house to reduce their size and slow them down. References usually suggest moving plants to a shady spot for a week or two and checking for pests or diseases before bringing the plants indoors, but I often skip that step and opt to do battle later should problems arise.
Winter care for these plants is simple. I water them whenever the soil dries out, and I give the pots a quarter turn every few weeks so the plants don’t get too lopsided from reaching toward the light. The dry indoor air can take a toll on tropical plants, so I provide additional humidity by grouping the plants in masses and misting frequently. If possible, I put the plants atop trays filled with gravel and water. Humidifiers help, too, as does turning the thermostat down to the mid-60s. Once the days start to lengthen again, I provide an occasional taste of diluted fertilizer.