pattern

scheme

device

adornment, caparison, decoration, embellishment, frill, garnish, ornament, trim

addiction

disposition

bent, inclination, proclivity, set, tendency, tenor, turn

bag, convention, form, mode, style

usage, use

deportment, manners, mores

drill, groove, jog trot, regime (also régime), regimen, rote, routine, rut

affectation, airs, pose

attribute, characteristic, mark, trait

eccentricity, kink, oddity, peculiarity, quirk, singularity, tic

daily dozen, regimen

housekeeping

custom, fashion, habit, practice (also practise), trick, wont

approach, manner, method, procedure, strategy, style, tack, technique, way

design, plan, program, scheme

convention, policy, tradition

motif, theme