basically as Preston says but in addition use a few squirts of washing up liquid before sponging the blank and handles down with a non abrasive pad and do not omit to dry the rod with a clean towel, especially on the spigots. Otherwise swelling might occur and you have trouble putting your rod together. Therefore, do not soak it too long, a few minutes are enough just to loosen the worst of the grime and make sure to wax the rod surface after the procedure for protection. Lubricate the reel holder threads and metal parts with WD40 or similar resin free oil as well. And - for the future, always follow a simple rule: Never ever lend out your wife, your motor or your fishing gear. The condition these precious articles are returned (if at all) is certainly always most appalling.