Once you have a little time and space, turn your mind to pure pleasure and making things that little bit different. You might like to treat each other to a "new" lover with a change of appearance: anything from a quick trim and a new outfit to a full-on blond wig, whatever sparks your imagination. Alternatively, you might like to recreate a look from earlier times, with the sort of sexy outfits that attracted you to each other in the first place. Put some real effort into looking stunning - it will put you in the mood and your lover will be delighted.
"take advantage of the fact that you are lucky enough to be with someone you have known and trusted for so long by experimenting"
You should also take advantage of the fact that you are lucky enough to be with someone you have known and trusted for so long by experimenting. Get creative - each of you tell each other something that you would like to do that you have never done before, then do it! It might be a fantasy that you have thought about for some time, something you saw on the telly or just an idea that springs to mind. Your partner will appreciate your honesty and it could open up a whole new side to your love-making.
Making your sex life a priority can be a fresh start in your relationship. You could try drawing up a list of ten things each of you wants from your love-making and try to maintain it from then on. Your new love "contract" could be the beginning of a lot more fun for both of you and a way of keeping the magic alive for at least another 20 years.